Sarah

This page lists questions and answers that were posted by visitors named Sarah.

Questions

The following questions were asked by visitors named Sarah.

((2X-14Cos45)/(49+X^2-14XCos45))+0.3536 = 0 Solve to find the value of X Change cos 45 to sqrt 2 and rewrite the equation in the form a x^2 + bx + c = 0 Start out by rewriting it as 2x - 9.8995 = (-0.3536)(49 + x^2 - 9.8995 x) Conimue until you get the fo...

20 years ago

Ok I had 2 eng. questions, what makes a piece of writing literature, and the second was who decides what is literary or not? I got the first question, but no idea on the second one?? Is it publishers and scholarly peers or what? Generally, scholars determ...

20 years ago

What does the brain teaser I a SWAA mean? Thanks. http://www.swaainternational.org/ (Society for Women and AIDS in Africe) Sudanese Women Artists Association|Welcome (Sudanese Women Artists Association) Social Welfare Action Alliance http://www.socialwelf...

19 years ago

I can't figure out the correct answer for this, please help. The drosophila embryo goes through a series of mitotic divisions before cytokinesis occurs. This demostrates one of the following. 1: cytokinesis is inextricably associated with mitosis 2. mitos...

19 years ago

The number _____ and _____ sign are assigned to the first nucleotide of a transcriptional unit. a. 0, positive b. 1, negative c. 1, positive d. 0, no sign No idea what the answer might be. Since this is not my area of expertise, I searched Google under th...

19 years ago

a) I can't find anything about the Electoral college being described in the Constitution? (My teacher said there are two parts) Is there a section in the Constitution where it describes the checks and balance system? I need to find out where each branch h...

19 years ago

Consider a car making a turn at a constant speed a) is the net force on the car zero? Why? b) Is the velocity of the car constant? Why? c) Is the car accelerating? Why? a)no it's not zero. Is it because it is experianceing a net force,, which is centripet...

19 years ago

Help Me!!! I need it for Tuesday!!! Why is care necessary in the handling and storage of frozen foods??? These sites explain the necessity to carefully handle and store frozen foods. http://www.aces.edu/pubs/docs/E/EFNEP-0191/EFNEP-0191.pdf?PHPSESSID=78da...

19 years ago

A particle had a speed of 18m/s at a certain time and 2.4 s laer its speed was 30 m/s in the opposite direction. What were the magnitude and direction of the average acceleration of the particle during the 2.4s interval? I got -5m/s^2 but the book said it...

19 years ago

An electron had a constant acceleration of +3.2m/s^2. At a certain instant its velocity is +9.6m/s. What is its velocity at a)2.5 s earlier and b )2.5s later? I will be happy to critique your work. I could a= change in velocity / change in time ? Here's t...

19 years ago

Suppose a rocket ship in deep space moves with constant acceleration equal to 9.8m/s^2., which gives the illusion of normal gravity duing flight. a)If it starts from rest, how long will it take to acquire a speed one-tenth that of light, which travels at...

19 years ago

Hi guys, could you please help me with this question; What reason would firms wish to have knowledge in regards to the income elasticity of demand for its products??? Is it because it allows them to see what happens to their total revenue as price changes...

19 years ago

please describle and compare the three basic ways in which software designers enable users to enter commands into computers I use my mouse, I use a light pen, I use my keyboard, and I can use my microphone.

19 years ago

how does five degrees east of north keep a plain going north when the wind pushes the plain four point six degrees west of north? This is not calculus. It is a vector problem. THe wind is pushing the plane west. If you need the solution, to find the direc...

19 years ago

I need to type an esay on my favorite athelete unfoetunately I don't have a favorite athelete can you show me famous atheletes What sport do you enjoy? First of all, be sure to spell the word correctly -- athlete. Then you'll be able to conduct a search t...

19 years ago

Hiya, I need some help for a poetry essay I have to write. Can you tell me what the line "darkness beneath nights darkness had freed, that rose slowly towards me, watching" might mean? I have no idea. What is the context of this? What is the title of the...

18 years ago

Here's my essay, could you please tell me what you think of it and suggest some improvements? Poetry Essay Chinua Achebe and Ted Hughes, the poets of Vultures and Pike, have both written two poems which show ambivalence towards their poem’s subjects, but...

18 years ago

Hey writeacher, you asked me to repost my corrections. I have corrected from where you left off and I THINK I have most of the punctuation mistakes but I don't have a knack for spotting wording mistakes although I have tried. You know when you say change...

18 years ago

How would I work out this question...? A car costs 1,150 after it was reduced by 15%. What was the original cost? :S If x is the original cost, then .85*x = 1,150 or x = 1,150/.85 So I would divide by 85 and times by 15 and then add my answer to 1,150? No...

18 years ago

Hiya, writeacher are you online? I don't know if you remember me from last night but you we're helping me proof read my essay. Is there anymore mistakes in the paragraphs you didn't look at? Here's what we've done so far: Poetry Essay Chinua Achebe and Te...

18 years ago

Two sides of a triangle are 15 and 20 feet in length. How fast is the third side increasing if the angle between the given sides is 60 degrees and is increasing at a rate of 2 degrees per second.

18 years ago

Water flows at a rate of 2 cu. ft. per minute into a vessel in the form of an inverted right circular cone of altitude 2 ft. and the radius of base 1 ft. At what rate is the surface rising when the vessel is one-eighth filled?

18 years ago

Water runs into a conical tank with radius 5 and altitude 10 at a constant rate of 2 cu.ft. per min. How fast is the water rising in the tank at any instant? You want dh/dt, given dV/dt. so write an equation relating V to h. V= 1/3 Areatop*h, in this case...

18 years ago

A balloon is composed of a right circular cone joined at its base to a hemisphere. The diameter of the base is equal to the height of the cone. If the balloon is inflated, at what rate is the volume, V, changing with respect to the height, h. Volume=1/3 a...

18 years ago

what unit of measurement is used for font size? what is the difference between 'serif' font and 'sans serif' font? Name 6 different serif fonts and 6 different sans serif fonts. Make a list of different ways you can find to emphasise a text. http://psycho...

18 years ago

Help unscamble these letters pacres SPACER SCRAPE Parsec

18 years ago

I have to write an independant essay about an important event in the 60s. We have to find our own research but are allowed to interview experts or people that were alive during the time. I am choosing the moon landing; were any of you lot born during that...

18 years ago

We have to do a presentation about the 60s and choose the most significant event. Our teacher said we may interview experts or people around the time to get more information, as this task is independant. Could as many people as possible please answer my s...

18 years ago

Can you use TLC to distinguish various isomers from one another? In what kind of substance can you NOT distinguish the isomers from each other? i think it is not possible to distinguish If I have an unknown sample containing several ketones and want to us...

18 years ago

Do conductors always need to conduct precise rhythmic patterns to keep musicians together? I do not think so. Is this correct. :) No, not always.

18 years ago

Hiya, I had to write an essay about the most important event in the 60s. Here is my essay: The Space Race On the 20th July 1969, the human race accomplished its single greatest achievement of all time: when a human first set foot on another celestial body...

18 years ago

Here's my essay, about the most important event in the 60s. It's for history. Could you let me know if there's any gramatical mistakes, or make suggestions? Hiya, I had to write an essay about the most important event in the 60s. Here is my essay: The Spa...

18 years ago

What year did the miscegenation law end (abolish) I know that one state abolished it in 2000 but which one Loving vs Virginia passed by the Supreme Court abolished miscegenation laws. Here is further information on that. http://en.wikipedia.org/wiki/Lovin...

18 years ago

Hi, I am currently taking AP US History and we I have never been a history buff so I am illiterate when it comes to any type of history. I was given this statement to write about but I have no idea what it is talking about or asking me to talk about pleas...

18 years ago

During the Reformation period, did political concerns primarily serve religious needs, or was religious ideology primarily an instrument of political practicalities? Either way, it's a huge generalization. I think it depends on the individuals you want to...

18 years ago

The market for fertilizer is perfectly competitive. Firms in the market are producing output, but they are currently making economic losses. a. How does the price of fertilizer compare to the average total cost, the average variable cost, and the marginal...

18 years ago

what is the silver bullet? How does it realate to us? Thank you for using the Jiskha Homework Help Forum. HOWEVER we could certainly use the "context" of the word. Where did you see/hear it? If you always clarify as best you can we can determine with more...

18 years ago

Do you know of any sites where I would be able to make a French pen pal? Preferably one my own age (14). My teacher told us to try to get one as homework to help us with our fluency. search google I have tried doing that but all I get is people looking fo...

18 years ago

Isn't "In a Mellotone" an example of big band swing or small group swing? I thought it was big band swing but was told otherwise that it wasn't. Can anybody clarify. It is big band swing. Count Basie, Duke Ellington had this tune as mainstays. They repres...

18 years ago

I am a little confused about the action potential concept (see nervous system) I have 3 multiple-choice questions that I need help with: Which is the correct sequence of events that follows a threshold potential: 1.the membrane becomes depolarized 2.sodiu...

18 years ago

I was told that Joan Baez was in the musical style of Rock in the 1960s, but I thought it was folk music, can someone clarify please? Isn't playing one time through the chords of a song a verse? You will find in this site that Joan Baez had quite a number...

18 years ago

Could you give me some feedback on the first page of my story for an English narrative assessment? Tell me what I could improve (descriptions, phrases, ect...) and what sounds wrong, if that's OK. Here it is: It all started the day Jules McGregor moved to...

18 years ago

I just need help in reviewing my answers...they are all true/false questions..THANKS!!! 1. A principal-agent problem occurs when managerial decisions are inconsistent with the firm’s revenue maximizing objective. False 2. A firm making less than a normal...

18 years ago

I need help with my thesis statement for my term paper on Alcatraz. The paper focuses on Alcatraz history, Life on Alcatraz and Famous Prisoners and escapes (10th grade). I have: Alcatraz, a federal penitentiary, history of Alcatraz, life on Alcatraz, whi...

12 years ago

Hey , can someone please tell me if this sounds good so far about the causes of World war I, and if not please give me your input. While President Woodrow Wilson was having political issues with Mexico, anxiety between European countries was increasing. S...

18 years ago

Can someone please tell me what countries were involved in the civil war? Many countries have been involved in civil wars. A civil war is a war within a country. The English Civil War was fought between the English Royalists and Parliamentarians in the mi...

18 years ago

Can someone please tell me what countries were involved in the World war I? http://en.wikipedia.org/wiki/World_War_I =)

18 years ago

I wanted to make sure that this is correct. Please give me your input. Thanks a lot!! The countries involved in World War I was Russia, France, Italy, and Britain, Germany, Austria-Hungary, the Ottoman Empire, and Bulgaria. I think Mexico was also but not...

18 years ago

How did the U.S decideto enter the war? Ms. Sue will want to know which war you are talking about.

18 years ago

Hi, I would like to know if I have the right answer because I searched on the web. The question is what countries involved in World War I? What alliances existed? The countries involved in World War I was Russia, France, Italy, and Britain, Portugal, Japa...

18 years ago

Hi, I wanted to know if this is right or not. The purpose of the Espionage Act and Sedition Act during World War I was to protect government information. Also these were the only two laws which were passed during World War I. http://en.wikipedia.org/wiki/...

18 years ago

Can someone please help me find a website that explains who the minorities were and what contribution did they and women make in World War I? These sites have some information: http://arcweb.sos.state.or.us/exhibits/war/intro/minority.html http://www.kn.p...

18 years ago

The Overman Act was signed by President Wilson to gain more control over the war. If this is a true or false question, the answer is True.

18 years ago

Nobody won World War I because the Central Power surrendered except Germany, but Germany was later forced to sign the armistice. Is this a question, or what you believe to be true? If so, think again.

18 years ago

As the Allies were dominating, the Central Power was getting weaker. The armistice is a short-term contract to end the war. On October 30, 1918 Turkey signed the armistice, November 3, 1918 Austria Hungary signed it also, and finally on November 11, 1918...

18 years ago

How did the war end? As the Allies were dominating, the Central Power was getting weaker. On October 30, 1918 Turkey signed the armistice, a short-term contract to end the war, November 3, 1918 Austria Hungary signed it also, and finally on November 11, 1...

18 years ago

My question is how did World War I end? I am wondering if I answered it correctly and if I need to cover more information. *As the Allies were dominating, the Central Power was getting weaker. On October 30, 1918 Turkey signed the armistice, a short-term...

18 years ago

How did the Treaty of Versailles change Europe and effect Germany in particular? Please tell us what you know about how the treaty of Versailles changed Europe and Germany, and we'll be glad to add our comments and critique your answer. How did the Treaty...

18 years ago

How did the Treaty of Versailles change Europe and effect Germany in particular? This treaty affected Germany specifically transformed Europe and. First, Germany has been at fault for World War I, Germany was forced to sign the treaty, Germans had to pay...

18 years ago

Hi, I wanted to now if anybody knows a website that has maps of Europe during World War because I looked on Google, and it did not have a map that I wanted. (Broken Link Removed) This is about as complete as I can find. I hope you find a map you can use i...

18 years ago

I've begun writing a short story for English and I was wondering if someone could check through it and maybe give me a few tips on the storyline, improvements, ect... Here it is: Chapter One It all started the day Jules McGregor moved to our school. I tho...

18 years ago

Hiya, I have had to write a short piece of writing for french, which I will have to memorise and speak outloud to my teacher. To acheive the highest level possible (level 7, grade C at GSCE) we had to include past, present and future tenses. Please could...

18 years ago

If you could help me I'd be really greatful. We had to use past present and future tense. It isn't very long because I have to memorise it for a speaking exam. Here it is: Parle-moi de toi! J’mappelle Sarah et j’ai trieze ans; mon anniversaire c’est le di...

18 years ago

Could you please proof read this short bit of text, which I wrote to learn for my oral exam because I don't wanna learn it wrong. Tankyoo Kannst du deine tägliche Routine beschriben? Um sieben Uhr stehe ich auf und dann wasche ich mich und bürste mir die...

18 years ago

Could you proof read this? Kannst du deine tägliche Routine beschriben? Um sieben Uhr stehe ich auf und dann wasche ich mich und bürste mir die hare. Ich frühstücke und dannach fahre ich zur schule um viertel vor acht mit dem Bus. Ich komme um viertel vor...

18 years ago

How would I work this out? 4x+3y=21 2x+y=8 x=___ y=___ 4x+3y=21 (1) 2x+y=8 (2) (1) - 2*(2): y = 5 plugging this in one of the equations gives x = 3/2

18 years ago

I'm in the middle of writing an essay and one point I have to mention is the two different beliefs within Christianity. What are the two main beliefs of Christianity? 0_o Two different beliefs? There are many more than that. Here are some. Virgin Birth. T...

18 years ago

I have a few match problems that I can't figure out. 1.solve: 3x+5=x√7 (that's a radical sign) 2.factor: (2k+3)2-(2x+3)(y-2)-20(y-2)2 (the "2" after (2k+3) ans (y-2) is suppose to be a square sign. thanks if you can help, or even if you can't i ment "Math...

18 years ago

This is a short essay for my speaking exam. We had our exam today but I'm retaking it tommorrow because I want to try and get a better level. I've added some new stuff into my original essay. Please could you check that it's right? The bits which are in <...

18 years ago

I have this question that i am having trouble with..Please help Sally and 3 friends each bought a pumpkin at a local produce market. No two people carved their pumpkins to resemble the same object nor did any two buy their pumpkins at the same market. Usi...

18 years ago

What is 0.5 million in scientific notation? 2 thousandths, 1095 millionths? PLEASE HELP ME!!!!!!!!!!!

18 years ago

What is 0.5 million in scientific notation? 2 thousandths, 1095 millionths? What is 194 times 10 to the third power written in scientific notation??? .5 million is 5 ^10^6 2 thousandth is 2*10^-3 1095 millionths= 1.095*10^3*10^-6 =1.095*10^-3

18 years ago

What is surface area and how do you work it out? Surface area is the area on an object. How one works it is dependent on the object. SURFACE IS THE AREA OF ANY OBJECT. AND HOW IT WORKS IS IF YOU HAVE A SQUARE AND YOU WANT TO FIND THE PERIMITIER THEN YOU H...

18 years ago

A bottle that holds 250 grams of water holds only 175 grams of gasoline. What is the density of the gasoline? Take the density of water to be 1.0 g/ml mass = volume x density. Rearrange to find volume = mass/density volume of the bottle = 250/1.00 = ?? No...

18 years ago

The density of pure gold is 19.3 g/centimeter cube. A quantity of what appears to be gold has a mass of 465 grams and a volume of 26.5 mL. Is the substance likely to be pure gold? please tell me how you got your answer. Thanks! density = mass/volume You k...

18 years ago

Which is right... After someone says something, yell "liar". After someone says something, yell "liar." After someone says something, yell "liar." See the part at this site on quotation marks for words. http://owl.english.purdue.edu/handouts/grammar/g_quo...

18 years ago

in the multiplication: 39P * Q3 =32951 P and Q each represent a single digit. what is the value of P+Q? I may have missed something here, BUT IF the digit is 9, note that 39*9*3*9=9477 which is far short of 32951. And 9 is the largest single digit we have...

18 years ago

Hi, Can any one tell me the relations between TR Roosevelt and Tadasu Hayashi? Were there any tensions between these too? I have been Googling for hours and I can not seem to find connections between the two. Thanks Hayashi was the Japanese foreign minist...

18 years ago

A substance that loses its shape under certain conditions is called what? A liquid takes the shape of its container.

18 years ago

6. The chapter uses the analogy of a "leaky bucket" to explain one constraint on the redistribution of income. a. What elements of the U.S. system for redistributing income create the leaks in the bucket? Be specific. b. Do you think that Republicans or D...

18 years ago

How would I solve this equation? d-1 = -1 1 ____ ___ 4 2 (d-1) divided by 4 = -1 and 1/2 Thanks, Ok, I'll set up your problem this way: (d-1)/4 = -1 1/2 -1 1/2 is the same as -3/2. Therefore: (d-1)/4 = -3/2 Multiply each fraction by a common denominator,...

18 years ago

Solve the inequality- a/3>4 -2n<10 p/(-2)<-5 Trreat the inequality sign just like the = sign in an equation. a/3>4 a/3 * 3> 4 * 3 a>12 Do similar processes with the other inqualities. I hope this helps. Thanks for asking.

18 years ago

7. Suppose there are two possible income distributions in a society of ten people. In the first distribution, nine people have incomes of $30,000 and one person has an income of $10,000. In the second distribution, all ten people have incomes of $25,000....

18 years ago

Suppose that a family's tax liability equaled its income multiplied by one-half minus $10,000. Under this system, some families would pay taxes to the government, and some families would receive money from the government through a "negative income tax." a...

18 years ago

In the book Brave New World, was Bernard Marx a hero or a rebel ? Why ? http://www.sparknotes.com/lit/bravenew/canalysis.html Scroll down and read about him here. =) Thank you for using the Jiskha Homework Help Forum. In addition to the link you already h...

18 years ago

If an economy is experiencing a recession will both aggregate demand and aggregate supply be affected? Yes. Think about how all important economic forces are changing/responding to recessionary conditions.

18 years ago

hi i have a big problem got a practical, the effect of catalase on the rate of reaction on hydrogen peroxide. but i don't know the amount of hydrogen peroxide i should use or the source of enzyme? can anyone help? the source of enzyme cant be liver or pot...

18 years ago

I learned that price level is the weighted average of prices of all goods and services in an economy. Does weighted mean that certain goods and service have different weight (in other words importance)than other goods and services like chewing gum having...

18 years ago

what would be the Characteristic of service in a Doner Kebab restaurant http://www.thekebabshop.com/

18 years ago

how can a describe the service of a kebab restaurant. Don't they serve skewers of meat and veges?

18 years ago

Answers

The following answers were posted by visitors named Sarah.

Use the Mean Value Theorem to find out what c is. f(x)= 2sec^2 x, [-pi/4, pi/4]

12 years ago

I want to know if you ranswer is right

17 years ago

I think #3 is chemist? Can we try a couple more? 6. Other winners have written inspiring literature. DO-literature 7. Still other prize winners promote international peace. DO-peace 8. Every year, the Nobel prize winners receive their awards on December 1...

18 years ago

#3 is prizes? I need to find an indirect object for this next sentence. Write NONE is there isn't one. 1.She had sent the world a message about caring for others. IO-others

18 years ago

Is it world?

18 years ago

I got 68. First change (-4)/2 into -2. -2 to the third power is -8. Now your problem is 16 divided by -2 which equals -8. -8 x -8 equals 64. Then you add 4 which equals 68.

18 years ago

1 km = 1,000 meters, 100,000 cm, and 1,000,000 mm?

18 years ago

Could you please put this in layman's terms?

18 years ago

I believe that this answer is 9.8 m/s am I right?

I was thinking the exact same thing after I posted that today... I think I was thinking it was more complicated because it had so much information, but also cause I think I read it as the total concentration, not the concentration of one. Anyways, thanks...

17 years ago

I tried pasting the equation into google but,nothing happened

17 years ago

I'm not sure if this is what your talking about but a shandelier.

17 years ago

well he has read 28.75 pages from what I got figuring it out.

17 years ago

I estimate it would take him 9 and 3/8 days to finish the book at that rate:) hope it helps

17 years ago

thanks:)

17 years ago

well... break it down, first focus on 2x + L = 24 L = 24 - 2x this should be your first step. What I did with this problem is that I rearanged the problem so it was easy. First ask youself what would be the max number that I could use to make x= a number...

17 years ago

Are you asking what place value is the number three in?

17 years ago

just remember KHDUDCM King Henry Died Unusualy Driking Choco Milk k-kilo h-hekto d-deka u- unit mesurements (meters...) d-dilo something like that C-centi m-mili

17 years ago

oh yah you pick the letter that you start at then see how many letters it is till the one you are converting to and depending on if you go right or left, is how many spaces you move decimal

17 years ago

im not that good at french but i think its because un = 1 so it one instead of many.

17 years ago

random guess but an elephant because once it get to friday the elephant gets fried??????????????*lol*

17 years ago

Unfortunately the new way does suck and makes no sense, I try to revert back to the old way as much as possible. I still have a concern though. When I am trying to figure out all of the products that you get when you add these together and I only know one...

17 years ago

OH is an element known as Hydroxide, and the 2 indicates that there are 2 of them present.

17 years ago

Err, I meant to say compound not element. OH is a compound of oxygen and hydrogen. The 2 indicates there are 2 of this compounds present, which means that there are 2 of each element present.

17 years ago

If it was just OH2 then it would be a differnt element, water actually. The brackets are there to indicate that it is together, and to show you there is 2 of each, the 2 just at the end as you put it would indicate only 1 oxygen atom and 2 hydrogen atoms....

17 years ago

try this site h t t p :/ /ww w.britann ica . c o m / eb / t opic-285 012/Decl arat ion-of-I ndep e nde nce

17 years ago

just take out the spaces:)

17 years ago

i agree

17 years ago

thank you very much!!

17 years ago

First you start off with: Er kommt von einem.... and then where you think he is coming from.

17 years ago

red light

17 years ago

this doesnt really help because for all i know that article could have been written by a 5 year old. please, i just need a number.

17 years ago

well because wikipedia can be changed by anyone who goes on it and i am hoping that anyone on this board that is helping people with homework and such is not a 5 year old

17 years ago

Thanks for the website info!!

17 years ago

Tahnks Ms Sue :o)

17 years ago

Thanks Ms Sue, I appreciate your help!

17 years ago

Choose the sentence that has a subject complement. 1) The nurse felt my pulse. 2) I felt much better. 3) The day ended with many surprises. 4) We can't leave without seeing her. This one I have a problem with. I think it is #2 - I felt much better. I thin...

Exact question - Which one of the following is a correct example of the singular possessive case? 1) women's club 2) audiences' reation 3) who's job 4) king's right

17 years ago

4) Kings rights

17 years ago

"thes witch" is probably supposed to be "the switch",right?

17 years ago

i'm not sure if the fact that it got colder caused more intelligence but you're off to a good start...keep trying...i would say "since earth got colder, people started to worry and started getting more ideas about how to make themselves feel...well, warm"

17 years ago

When I plug the numbers I have into the equations I get this: F=(9e9)(-1.9e-6)(3e-6)/(.045^2)=-25.3 N F=(9e9)(-3.7e-6)(3e-6)/(.030^2)=-111 N Is this correct? If it is, in order to get the total force exerted on the positive charge, would I add this two up...

I HATE THE GERMAN HOMEWORK IT IS REALLY HARD ANDD BEING IN ALL HONERS IT GETS REALLY HARD.

17 years ago

* Where Is It Found?: Provide a location on the Earth where this type of boundary is located. * What are some features: Describe several geologic features associated with this type of boundary. * What are some Connections to Other Disciplines: Give an exa...

17 years ago

The reaction A + B -> C + D is second order in A and zero order in B. The value of k is 0.012 M-1 min-1. What is the rate of this reaction when [A] = 0.125 M and [B] = 0.435 M?

17 years ago

Oh, thank you for the example, it really helped.

17 years ago

Cool, thanks!

17 years ago

Thanks for your help Ms. Sue. I may have one more for you to review.

17 years ago

Yeepee!!

17 years ago

"Scale" means what you multiply something by to get the proper dimensions. So, 1/4 inch on the drawing is 1 foot in real life. How to do this one is to first figure out how many quarter inches are in 4 5/8 inches. Do this by dividing 4 5/8 by .25. The num...

multiply the numerators and multiply the denominators, keep them separate

just goofed afters spending all day reading my biology book :0)

17 years ago

a. i think is jim crow b. homestesd c. union d. utopia e.interchangeable parts

17 years ago

The other half of the question: These two questions are Required: 1. When a company modifies its pension benefits the way General Motors did, what name do we give the added cost? How is it accounted for? 2. What does GM mean when it says its “unfunded pen...

17 years ago

Could the rate of a nuclear reaction be changed by adding a catalyst or decreasing the pressure?

17 years ago

Thank you so much! I was so confused, and now I am explaining how to do it to other people in my study group! I find the skoog book really hard to follow, so I couldn't work out even the formulae to use. Thanks again, looking forward to a great mark in th...

17 years ago

Calculate the standard Gibbs free energy NH3(g) + HCl(G) --> NH4Cl Ive tried but I keep getting a different answer How do I get to the correc tanswer which is -91.2 kJ?

17 years ago

Balanced equation NH3(g) + HCl(G) --> NH4Cl deltaH = (1 mol)(-314.4 kJ/mol) - (1 mol)(-45.9 kJ/mol) plus (1 mol)(-92.3 kJ/mol) =-176.2 kJ deltas = (1 mol)(94.6) - (1 mol)(192.78) plus (1 mol)(-186.90) = 0.00588 DG = DH - TDS =176.2 kJ / 0.00588 =29995

17 years ago

I mean -176.2 -(278)(o.oo588) = -177.8

17 years ago

is this on a website?

17 years ago

Write the expression for Ka for the ionization of acetic acid in water.

17 years ago

When I calculate the percent difference between your value for Ka and the accepted value, what could be two sources of error that might account for any differences?

17 years ago

You pretty much answered my question thanks! :)

17 years ago

Calculate the Ka of nitrous acid if a 0.200 mol/L solution at equilibrium at SATP has a percent ionization of 5.8% For Further Reading chemistry - DBob222, Saturday, April 5, 2008 at 4:50pm HNO2 ==> H^+ + NO2^- Initial: (HNO2) = 0.2 (H^+) = 0 (NO2^-) = 0...

17 years ago

a) Ka = (H^+)(HCOO^-)/(HCOOH) = (x)(x)/(0.2-x) = (x^2) / 0.2 - x Next step please...I Hate these problems :P:)

17 years ago

So would that be a 1 for the coefficient?

17 years ago

Thank you! It was a very wordy question :/

17 years ago

(x)(x)/(.001-x) = Kb (x^2)/(0.001 - x) = 1.0 x 10^-6 So, in the form of ax^2 +bx + c = 0 this is x^2 + 0.001x + 1.0 x 10^-6?

17 years ago

solve using quadratic functions please

17 years ago

9/4-7/8 18/8-7/8 11/8 or 13/8

17 years ago

Thank you!

17 years ago

Keep readin ova da question until u understand it. den jus go 4 it n do ur best!!!!!

17 years ago

3pq-18pqr

17 years ago

Thank-you, That's what I thought to for #2...

17 years ago

Thanks, but what about question #2??? That's what I'm having major problems with.

17 years ago

Thanks Bob, that makes it very frustrating for me b/c all night I was thinking that I was doing it wrong! could you please help me with this question as well: #8)Using Lewis structures, draw the formation of the following ionic bond and write its chemical...

17 years ago

sorry, i posted that on the wrong wall.

17 years ago

Thanks, but what about the next question: #8)Using Lewis structures, draw the formation of the following ionic bond and write its chemical formula: magnesium and phosphorus

17 years ago

I believe the answer is 3a square root of 5a.

17 years ago

-1-(2)=3 -3-(-5)=2 *Change the two minus signs to plus, then add -3 plus 5 equals 2.

17 years ago

oops, my bad. simple mistake.

17 years ago

4*22=88+212=300+85=385 so... 385*0.6=23.10 Total=408.10 You are correct.

would it have still been right if I didn't change the exponent, and say for C atoms, left it at 28.11 X 10^23?

17 years ago

THANKS FOR ALL YOUR HELP TODAY.

17 years ago