Rachael

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

Questions

The following questions were asked by visitors named Rachael.

Phthalic acid, H2C8H404, is a diprotic acid used in the synthesis of phenolphthalein indicator. Ka1= 1.2x 10^-3, and Ka2 = 3.9 x 10^-6. a) Calculate the hydronium-ion concentration of a .015 M solution. b) What is the concentration of the C8H4O4^-2 ion in...

What, roughly, is the percent uncertainty in the volume of a spherical beach ball whose radius is r = 2.86 plus or minus .09 m? I know I need to use the formula (4/3)*pi*r3 somewhere in this problem because of the details given, but I'm totally confused.

A student measures the mass of a book as 12,321g. What is the book's mass in kg?

If Jenny built a triangle out of soup cans and there are 4 at the top row she added 2 cans to every next row so there are 8 cans in the second row. How many cans are in the 12th row?

I would like for someone to look over my assignment for accuracy. Thanks Rewrite the following sentences, focusing on the grammar area specified in the left column. If the sentence is already correct, write No Change. Punctuating Sentences The goose bit t...

where can i find information to answer these questions How do you think an average American’s perceptions of Muslim and Arab groups are created and what people think are the common United States-centric viewpoints on Muslim and Arab American and Christian...

Can you help me edit this thesis statement? During the postmodern literary period C.S. Lewis illumines his newfound religious faith during war in the religious allegorical fantasy "The Lion, the Witch and the Wardrobe>."

Hi, my history task for this weekend is to write an essay on this topic: "Women in World War II: An important step in the women's lieration or another opportunity for exploition" -Could you give me any insight,tips,information or starters to make this ess...

Good Afternoon, Could you please see if i have translated this english to french correctly? Most squirrels are active during the day, beginning at dawn, often resting midday, and active again until dusk. Squirrels are most active during the fall, collecti...

What are basic features of the American concept of Democracy?

Find three pairs of numbers for which the least common multiple equals the product of the two numbers

What is the name of the mixture of sand, lime, and water used as lubricant to help move stones?

What is the L.C.M. of 9 and 27? Also the G.C.F. of 9 and 27?

Meat patties are sold in packages of 12. Buns are sold in packages of 8. What is the least number of meat patties and buns needed to have an equal amount of each?

Two cats are taking a walk. 1 cat runs off. three cats come back. 1 cat sits down. How many cats in all are there if 6 more cats came back with one of the cats being the one that ran off?

What are the 3 numbers that com after trillion. I'm talk about this- Ex: million then billion. I want to know what comes after trillion 3 times.

a stone is thrown into a cylindrical water tank 2 feet in diameter, causing it to rise 1.5 inches. what is the volume of the stone?

what are the major connections between the ashcan schools ethics and todays documentary photogrphers such as nan godin and corrine day?

Who were the first Native American groups to settle in Ottawa, Illinois? Where did they come from? What kind of people were they?

What are the adjectives in each of the following: 1. A quarter will not buy very much. 2. Do you need any food for the party?

How do i say i don't like history?

Conduction, convection, or radiation? The heat you feel from a fireplace

The Burning MG in CO2 reaaction had deltaG=-746 kJ/mol at 298K. Calculate the equilibrium constant for this reaction.

The measure of AB is 4 units, the measure of BC is 5 units and the measure of CD is 12 units. Find the measure of DE?

You have a triangle that measures 180 degrees. AB is 4 units. the measure of BC is 5 units. The measure of CD is 12 units. What is the measure of DE and how did you get that answer?

The height, in feet, of a free-falling object t seconds after being dropped from an initial height s can be found using the function h = -16t2 + s. An object is dropped from a helicopter 784 feet above the ground. How long will it take the object to land...

Is the relation y> the absolute value of x+3 a function? Why?

A helicopter is 400 miles directly north of Ghana and is flying at 20 miles per hour. A second helicopter is 300 miles east of Ghana and is flying west at 15 mph. What is the rate of change of the distance between the helicopters?

The question is: Isotonic saline is a 0.9% (g/100ml) solution of salty water. You are asked to make up 2L of isotonic saline. How much salt should you weigh out? I got the answer of 18g with the following working: 9 ÷ 1000(ml) x 100 = 0.9 Therefore 9% of...

The question is: Hydrogen and oxygen gas combine explosively to produce water. Write a balanced chemical equation for this process. If 10 mol of hydrogen reacted with oxygen, what volume of liquid water could be produced? Is this right for the balanced eq...

The Ka value for ethanoic acid is 1.8x10^-5, what would be the pH of a 2.0x10^-2 M solution of ethanoic acid?

solve each equation for 0 less than or equal to x greater than 2ð. cot²x-cscx=1 thanks:) step by step please :)

Show that the pH of a solution is -0.301 when its hydronium-ion concentration equals 2 M. Is the solution acidic or basic?

Identify the acid or base behavior of each substance in this reaction: H2PO4 + H2O <----> H3O+ + HPO4-

A circular grassy region with a 12 ft diameter has a 2ft by 3ft reflecting pool in its center. What is the Surface Area of the reflecting pool? What is the Area if the grass?

A football is punted up into the air and it lands 5 seconds later. How high did the did the football reach it's highest point and when does it reach this height?

N decreased by 12 is greater than or equal to 11?

A block is released on an inclined plane from a height of 1m. There is friction (static and kinetic =.4) and the mass of the block is 5 kg, the mass of the pulley is 1 kg and it has a radius of 5 cm. The slope of the incline is 30 degrees. Find the accele...

In the reaction between bromine and sodium, a bromine atom gains an electron. What ion is formed? Is the bromine oxidized, or is it reduced? Thank You ^_^

Given that the specific heat capacities of ice and steam are 2.06 J/g degrees celsius, respectively, and considering the information about water given in exercise 16, calculate the total quantity of heat evolved when 10.0g of steam at 200. degrees celsius...

"A cab driver picks up a customer and delivers her 3.31 km away, driving a straight route. The driver accelerates to the speed limit and, upon reaching it, begins to decelerate immediately. The magnitude of the deceleration is 4.70 times the magnitude of...

A class of 85 students writing an exam had a mean mark of 74.2 write down the total sum of the 85 grades.

How many grams of HCL must be added to make 1 liter of a 2.0 M HCl solution?

Two ships sail from the same port. The first ship leaves port at 1:00a, and travels eastward at a rate of 15 knots. the second ship leave port at 2:00am and travels northward at a rate of 10 knots. Determine the rate at which the ships are separating at 3...

Given the the instantaneous voltage across a capacitor is VC=40(1-e -t/CR) Volts When being charged by a 40 volt DC supply, find the time, t for VC to reach 18 volts after the charging process has started if C = 100ìF and R = 20kÙ

concentrated sulfuric acid is typically 18.1 M H2 SO4. Calculate the volume in mL of concentrated sulfuric acid needed to prepare 125 mL of a 0.100 M H2SO 4 solution

If F(x)=x^3−7x+5, use the limit definition of the derivative to find FŒ(5), then find an equation of the tangent line to the curve y=x^3−7x+5 at the point (5, 95). FŒ(5)= The equation of the tangent line is y = x + . Check your answer for yourself by gr...

Four key marketing decision variables are price (P), advertising (A), transportation (T), and product quality (Q), Consumer demand (D) is influenced by these variables. The simpiest model for decribing demand in terms of these variables is: D = k - pP + a...

A researcher was interested in the emotional effects of music on exam performance. Before their exam, a professor took one group of students into a room in which calming music was played. A different group of students were taken to another room in which n...

A slab of granite has a mass of 1400.0 grams. The specific heat of granite is 0.040 J/gC. How much heat must be absorbed to raise the granite slab's temperature by 75 degrees C? 11.8 kJ 80.5 kJ 88.2 kJ 19.5 kJ I've tried solving this several times and I n...

HCl(aq) + LiOH(aq)--> H2O(l) + LiCl(aq) Did I do this right? I need help on finding the net ionic equation

Standardization of iodine solution was prepared using 10.0 mL of a standard, 1.00 mg/mL, ascorbic acid solution. Titration with the iodine solution required 35.80 mL to reach the end point. What is the molarity of the iodine solution?

A 5.46 L cylinder contains 2.35 mol of helium gas at 7.0◦C. What is the pressure of the gas in the cylinder?

What is the volume of 0.190 g of C2H2F4 vapor at 1.19 atm and 25.8◦C?

How much carbon dioxide gas is there in a 30.3 L container at 42.0◦C and 6.24 atm?

The 3rd term and 9th term of a G.P are 54 and 39,366 respectively.Find the:6th term,sum of the 4th and 7th term and product of 2nd and 5th term?

In which type of reproduction do offspring form on the surface of the parent

Factorise this equation 2y²_5×-3

Answers

The following answers were posted by visitors named Rachael.

thanks, buti don't understand where to put the decimal in the answer!

Would it be 75?

Punctuating Sentences The goose bit the mailman on the leg. Ans:The goose bit the mailman on the leg, and ran away. With five gallons of gas. Ans:The arsonist set the field ablaze with five gallons of gas. Because the store was closed Ans:I was unable to...

Thanks, so much

Punctuating Sentences For the seventh time. Ans:No, you may not play ball in the house for the seventh time. The rainbow stretched across the sky from the ice cream truck to the house down the lane. Ans: No change. Between the sixth and seventh floors of...

Thank You for your time and patience.

How about: As a postmodern peice of religious allegorical fantasy, The Lion, the Witch and the Wardrobe helps to illuminate C.S. Lewis's newfound Christian faith. Or: During the postmodern literary period C.S. Lewis illumines his newly adherent christian...

Ok Just so you know a little more about my assignment, I am supposed to write an essay about the connections I can make between the life, the literary time period in which Lewis lived, and his book, The Lion the Witch and the Wardrobe. I did take a look a...

ok thank you for your help!

Sorry about that,but thank you so much for doing this.

However, the departure from this view became evident with the ratification of the Sixteenth Amendment to the United States Constitution (income tax) as well as the Seventeenth Amendment to the United States Constitution (direct election of federal Senator...

go to google and search or better yet go to wikipedia and look it up, there is some good info there!

Generally the writing process is seen as consisting of five steps:[citation needed] Pre-writing: planning, research, outlining, diagramming, storyboarding or clustering (for a technique similar to clustering, see mindmapping) Draft: initial composition in...

whats the answer?

Thank You! I'm bookmarking this website. This is awesome. Again, thank you so very much!!!

Yes, that is correct.

Yes. Indeed it is correct.

The range is 58.77. and the max is also 20.58. You did it right. Because I even wrote it down and I used my calculator. So, yes you did it correctly.

There would be 5 dogs 6 cats and 7 squirrels. Add them together there is 18. And if you go any higher then there would be 21. So the greatest amount of dogs would be 5.

No problem. Just here to help. Lol

Go to google and type in two opposing arguments about tattoos. Then keep scrolling down until you reach the bottom. Then click that. You can read all about that. It may help out.

Why, you're welcome. Tell me what you come up with and then I'll still help you.

first number is 910/39,the second one is 3601/13and the third one is 2/3

1.423760 2.4 years

2/5=x2 4/10=x3 6/15

Steves mom is 47 and Steve is 18

the answer is 12

cross sectional area*length

1 litre per bottle

You may have copied the question wrong because I had the same one for homework, only d=0.789g/L instead of g/mL. That error would account for your unusually high number

need help writing a soap note with five medical words out of chapters 6,7,8

Thank You So Much! ^_^

Actually #2 is correct. Just took this y test.

Actually, #1,#2, and #4 are correct. Just took this test a few minutes ago...

The People's Party grew out of a response to falling cotton & wheat prices in the South & trans-Mississippi West. The Farmers' Alliance, formed in TX in 1876, promoted collective economic action by farmers.

If the opposite of x is -x, then their sum is 0, however, if the opposite of x is 1/x, then their sum is (x+1)/x

Electric field at a distance r from a charge q is given by Coulomb's law: E = k q / r^2 To get the E-field, you have to add the contribution of 3 charges: E1 = k q1 / r1^2 E2 = k q2 / r2^2 E3 = k q3 / r3^2 You can look at the geometry and so simple additi...

Liked your answer, did not see it the first time, thanks!

the second answer is b.) cookies that track it online habits ik this because I just took a test and got it wrong because of this webpage 😂

Basically, when BaSO4 dissolves in water, it dissociates into the ions Ba^+2 and SO4^-2. The solubility product constant expression then becomes as follows: Ksp=[Ba^+2][SO4^-2] You already know that the Ksp for BaSO4 is 1.1x10^-10. This means that BaSO4,...

In question 2 we are looking for 3 diagnosis codes, 5 E codes, and 2 CPT codes. I have 3 out of 5 e codes. any help would be greatly appreciated.

94.5 5.5 1.6 44.5 68 50

Bob I'm sorry, the heat is 0.840J

A newspaper article to warn people against engaging in fraud and corruption

Evaluate the physical,social and economic consequences of this crime to the offender.how did this corruption and fraud impact negatively in the country

Physical,social and economic concequences of fraud and corruption

it's NEWS coz once you hear it it was new but it has became old.. Soo if you hear in the next 30 seconds it will be old already... So it's new and old at the same time

number 4 is wrong

For collar impulse I would say light into heat into kinetic into electrical

the answer is “the setting”

I got 7514.952712, is that correct?

I solved for P and got 7514.952712 torr.

Molecular structure of Hydrogen Cyanide

1cm=5km 5km=500000cm Real length=500000×2 =1000000cm Real width=500000×1.5 =750000 Hence real area=A×B =7.5×10^11