Barbie

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

Questions

The following questions were asked by visitors named Barbie.

Consider a salt of the composition, A2B3. For this salt, pKsp=82.55. What is the logarithm of the molar concentrtion of this salt? I'm really at a loss of where to begin. We didn't have any examples like this in class. Thanks!

The Smiths have four children, all girls but the fifth child is a boy. Why did this change occur? a) the law of averages finally catching up b) the conception classes taken by the parents c) the father's contribution of a Y chromosome d) the mother's cont...

In ancient Athens(Greece) tribes and generals took turns at power. this is an example of what type of political system? a) dicatatorship b) monarchy c) oligarchy d) pure democracy e) representative democracy

1)1-cholorbutane 2)1-bromobutane 3)2-chloro-2-methylpropane 4)chlorobenzene 5)3-chloropropene 6)Benzyl chloride 7)allyl bromide 1. Compare Sn1 vs. Sn2 for the different halides used in this experiment. a)What type of halide is each of these; alkyl, vinyl,...

2. Arrange the compounds of each set in order of reactivity toward an Sn2 reaction. a)t-butyl chloride, 1-chloropropane, 1-chloro-2,2-dimethylpropane, 1-chloro-2-methylpropane b)2-bromopropane, 2-chloropropane, 2-iodopropane

3. Compare Sn1 and Sn2 reactivities of alkyl halides with regard to a)stereochemical outcomes b)an increase in the nucleophilic concetration c)an increase in alkly halide concentration d)an increase in the polarity of the solvent e)rearrangements

How does one determine variance analysis? I am trying to understand this and my text book is confusing me. Also, to determine this, would one find the the answers in the balance sheet or cash flow statement, or from the revenue and expenses?

Which principle of light is used in vision?

What problems are associated with optical fibres?

Who are the Balkans and what relationship do they have with Russia or Germany or WWI?

Two parallel lines are cut by a transversal. Angles A and B are adjacent exterior angles. Angle A measures 87 degrees. What does Angle B measure?

Describe Charles Dickens' style of writing. I think includes diction and figures of speech used.

Does the circulatory system transport red and white blood cells? If so, how?

Please show the procedure for answering this quadratic equation using the completing the square method: x^2+14x+98 I think i understand the basics of the method, but in this particular question I'm finding it hard to use the appropriate factors of 98 - 7...

Can i please get the analysis of the poem "Horses" by Edwin Muir? This should not, however, be confused with another of his poems "The Horses". Thank you.

How are Rift Valleys formed and which two plates formed the Thingvelir Rift Valley in Iceland? Please help!

Can I please get help on the mood and atmosphere created by Allen Curnow in his poem "Continuum"? Thanks.

Whereb must an object be placed from a concave mirror of radius of curvature of 6cm. to give an image on a screen four times as large as the object

A man 1.5meter tall stands in front of a concave mirror whose radius is 30cm. Find the position of the man that will lead to his image on the screen 20 cm. from the mirror. How big is the man's image?

How do earthquakes occur at faults?

What is the difference between storage media and storage devices?

What happens to a disk when it is formatted?

Does the Messina Plate (small piece of oceanic crust between the African and Eurasian Plates, near Messina, Italy) still exist after its forced subduction underneath the Eurasian Plate, by the African Plate?

What is a gorge?

What is a rural settlement and what is an urban settlement?

Does anyone know where i can read "Nervous Conditions", by Tsitsi Dangarembga, online?

In Act 5 of "The Tempest", why didn't Prospero tell Alonso about Antonio and Sebastian's plans to kill him? And because of his decision not to, what adjective would best describe Prospero?

Is the Plus-que-parfait tense the same as perfect tense in English?

What synonym of crumble can replace it in this sentence: "The town slowly crumbled"?

what do you call someone who now sees life for more than they thought it was before?

What is the difference between an Urban Area and an Urban Zone?

Can you say "Had they had an option, they would have picnicked somewhere else"?

52. Complete two column proof. Given: x/6+2=15 Prove: x=78 x/6+2=15 A:______ x/6=13 B:______ x=78 C:_______

Write a balanced equation assuming iron oxidizes to iron (II). I used CuCl_2 in the experiment.

How to calculate dimensional analysis using the density and molarity to calculate the percent (w/w)???

10 synonym of avert

5 sentences with avert

Define the term exhibition

Mention two main types of exhibition

Five factors to consider when planning,preparing and mounting an art exhibition

Decoding the past answers for connections Academy quick check.

Word of the week of old Tafo Methodist model jhs

What was the word of week for last week for old Tafo Methodist model jhs

Meaning of excellence it synonyms and 5 sentences with it

Meaning of excellence

Synonyms for excellence

5 short sentences with excellence

5short sentences with excellence

How long does it take for blood to expire?

Social media helps children very much,bring your idea

Advantages of social media to children in short words

Disadvantage of social media to children

How social media was in the olden days and in the modern days

List any 5 professions in french

List any five professions in French and show their articles

Write an article in Twi about social media for me

A man buys eggs at 4.50 per crate of 30 eggs.he finds that 20percent of the eggs are broken but sells the rest at GHc3.00 dozen.find his percentage profit to the nearest whole number

A woman sold an article for GHc400.00 and made a profit of 25percent find .1.cost price2.profit

Yaa bought 200egg at GHc30.00 and sold them at GHc40.00.find his,1.profit 2.profit percent

Analyzing informational text unit task answers connections academy

Why is this a strong claim for argumentative essay

What message from claim have to support it

Best brain questions of ict for Jhs3

Best brain examination questions of icy theory and objectives for Form3 student and their answers

Best brain exams question of social studies for form3 students theory and objectives

Social studies topics for form3

What is feed preparation

What is ablution?

State and explain five prayers in Islam in short sentences

What does cardholders mean

What does fardh mean

What does fardh(farz)mean in Islam prayer

What does sunnah mean in Islam

What is next after the sunnah prayer in Islam

After fardh what comes next in Islam prayer

what does nafl(nafilah) mean in Islam prayer

What is next after the nafl prayer in Islam

The ten prayers in Islam are:fardh,sunnah,nafl and what?

Is Hadith part of the prayers in Islam

Explain ten prayers in Islam

What does wajib mean in lslam

What is the meaning of bts

Identify five situations in the home that need tolerance

Give five benefits that we all can enjoy if family members are tolerant

State five importance that the community and its members can gain from celebrating Adae

Explain five things one will consider to become a successful entrepreneur

Describe four different Christian festivals in your area

Give five ways students can prevent themselves from substance abuse

Describe seven things that goes on in the celebration of hajj

Explain five types of traditional sacrifice

Who is anonymously here

List the ingredients in making ice cream

What is the meaning for glory,Cecilia,keziah,Esther,Ellen,precious

Answers

The following answers were posted by visitors named Barbie.

step 1:[2A^+3][3B^-2]/[A2B3]=82.55=Ksp step 2:total concentration of the top part is [3.548E82]/x=82.55 step 3:[3.548E82]x 82.55=x step 4: x=2.92E84 Can you please check this if am correct and am in the right path...am just not good with this chemisty stu...

Sorry about the units. It is 249.92mL of H20. Since the water is not in grams, what equation should I use?

B) The particular stretch of road is oriented north and south, the orientation that many of the major roads in the Inca system had because of the north-south orientation of the Andes chain.

letter of credit= A letter of credit (LC) originates at a bank, and guarantees that a seller will receive payment of a set amount, at a set time, from a buyer as agreed upon. air waybill= An air waybill (AWB) is a shipping contract of sorts, between the s...

You can have your instructor fax a form to them explaining the course. I too had that problem. Once the facilities got the faxes, it was fine. This was explained to you in your Syllabus as well as the instructors notes during Week 1.

thanks for trying to help, sra, but there are no answers to my question there...

I'm sort of a newbie at poetry analysis and i need guidance on this particular poem because I can't find it anywhere on the internet. Will check out these links though, but please help.

I've understood from that the first two stanzas of the poem talk about the writer's childhood memories of the plough horses on his father's farm and how, being a young boy of maybe four or five years old, saw them as giant and mysterious creatures and fea...

Thank you, I found my answer!

A man 1.5 meter tall stands in front of a concave mirror whose radius is 30cm. Find the osition of the man that will lead his image on the screen 20 cm from the mirror. How big is the man's image

Sizanani & ndlovu

Thank you very much!

I have already been to Sparknotes, but it doesn't answer my question.

English is the language of opportunity

Calculate the percent yield of copper Fe+CuCl2-->FeCl2+Cu

What is the propper handling of a meterstick?

Di ko knows huhu. 500g?

wow this is hilarious

give us the da#! answers stop acting like 5 years old dang.

Evaluate how each of the following personality types deals with interpersonal conflict 2.Aggressive/Bully 3.Assertive /extrovert

4 interview questions on how inhuman farming methods could lead to ill health

I am not understanding please explain me

Triangle IJK such that IJ=JK=8cm and JKI=60o.draw

Inputs-electrical

Oh, yeah! Thanks!