Refer a friend and earn $50 when they subscribe to an annual planRefer Now

Get the answer to your homework problem.

Like

Report

Write the balanced chemical equation describing the dissolving of each of the following sparingly solublesalts in water. Write the expression for $K_{\text { sp }}$ for each process.$\begin{array}{ll}{\text { a. } \operatorname{Bi}_{2} S_{3}(s)} & {\text { c. } \operatorname{Co}(\mathrm{OH})_{3}(s)} \\ {\text { b. } \mathrm{Ca}(\mathrm{OH})_{2}(s)} & {\text { d. } \mathrm{Cu}_{2} \mathrm{S}(s)}\end{array}$

a. $K_{s p}=\left[B i^{3+}\right]^{2}\left[S^{2-}\right]^{3}$b. $K_{s p}=\left[C a^{2+}\right]\left[O H^{-}\right]^{2}$c. $K_{s p}=\left[C \sigma^{3+}\right]\left[O H^{-}\right]^{3}$d. $K_{s p}=\left[C u^{+}\right]^{2}\left[S^{2-}\right]$

Chemistry 102

Chapter 17

Equilibrium

Section 9

Solubility Equilibria

Chemical Equilibrium

Carleton College

University of Central Florida

University of Kentucky

Lectures

03:07

A liquid is a nearly incom…

04:38

A liquid is a state of mat…

03:40

Write the balanced chemica…

08:03

08:52

01:38

Write balanced equations a…

02:01

Write balanced equations f…

02:13

00:55

Dissolving $\mathrm{K}_{2}…

04:20

02:11

Write a balanced chemical …

02:12

so this question were given various solids and were asked to write the equilibrium. Um, that describes their, uh, dissolving in water and figure out Caspian. So our 1st 1 is business, Uh, sulphide. So be I to asked. Three, which is in solid form and will be in equilibrium with business three plus and sulphur to minus. Now, don't forget the coefficients. We have three software that you can see from here and to business, and so that's going to make sure that the eye of the charges cancel out. And so KSB is equal to the concentration of the products over the concentration reactions. But we have a solid here on. Let me be clear. Here we have a quist ions. That's how I was always our unless that ridiculously high temperature eso solids are not considered solid liquid, they're not considered the mass action expression. So well, we're gonna have us the concentration of business three plus squared. You remember coefficients will become exponential, and then we have solved for two minus cube, and so that's gonna be our 1st 1st expression. Next one is calcium hydroxide. I'll do that a different color. We have calcium times with 20 h groups. And so that's going to be solid again after the storm and ignore the states because it's always the same. We have the well. Both ions are Equus, the initial solid solid. And then we have O H minus. But we have two of them. Don't forget. Or else you're gonna mess up your KSB by forgetting this exponential appear. And so now that's our equation. KSB then is going to be equal to the concentration of see a two plus times a constellation of hydroxide just taking the product of all the product products, multiplying all the contractors of the products and ignoring this solid. But remember, there's a to further coefficient, so this must be square. Excellent, that sarcastic. Now we have cobalt. I drop side CEO Oh, age three, Big nor the States. For now, until we have Cobalt three. Plus, that's a curious, and we have three hydroxide. Know that the charge Cancel out three plus here, plus three one minus is there so no cautious. That's ugly. Um And so now we read our Casspi, which is going to be the product of the concentration of the cobalt ion times a constellation of the hydroxide ion to the third power. Don't forget that. Three gonna be really sad if you dio. And now we have copper sulphide. See you to us, which is again salir when it dissolves is going to give us copper two plus heart of the knowns. Give us copper Plus and two of them and Saul for two miles. So I'm gonna take a there to explain the one of the ways you can avoid this sort of mistakes. First off, it's useful just to know what common oxidation states we have. Sulphur is basically always two minds. And so if we have two minus here, we know that we have to have two plus in our to neutral tries to stars. We have a total of two plus, but we have to ions here. And so each of these we want Plus, since our ksb those going through the product a C U plus to power of two, because the coefficient there times a concentration of us to minus the sulfide down. That's our answer.

View More Answers From This Book

Find Another Textbook

Numerade Educator

A liquid is a nearly incompressible fluid that conforms to the shape of its …

A liquid is a state of matter in which a substance changes its shape easily …

Write the balanced chemical equation describing the dissolving of each of th…

Write the balanced chemical equations describing the dissolving of the follo…

Write balanced equations and expressions for $K_{\text { sp }}$ for the diss…

Write balanced equations for the dissolution reactions and the corresponding…

Dissolving $\mathrm{K}_{2} \mathrm{CO}_{3}$ in water gives a basic solution.…

Write a balanced chemical equation for each of thefollowing.\begin{e…

Write a balanced chemical equation for a laboratory preparation of each of t…

07:11

Draw shell models for silicon and oxygen atoms to show the transfer of elect…

01:14

According to Le Châtelier’s principle, when a large excess of a gaseous reac…

01:22

How many calories of energy do you need to transfer for each of the followin…

01:13

How many protons, neutrons, and electrons are in each?a. fluorine-23 $\q…

01:53

Provide examples to support the claim that phase changes are reversible.

03:02

Why is it useful to know the value of the equilibrium constant $K$ for a rev…

01:20

From a molecular viewpoint, explain how thermal equilibrium is reached when …

01:45

Explain how you can use mass to count large numbers of objects.

00:12

What does the diagonal line on the graph represent?

01:21

How many liters of each solution do you need to get 3.0 mol HCl?a. 12.0 …

92% of Numerade students report better grades.

Try Numerade Free for 30 Days. You can cancel at any time.

Annual

0.00/mo 0.00/mo

Billed annually at 0.00/yr after free trial

Monthly

0.00/mo

Billed monthly at 0.00/mo after free trial

Earn better grades with our study tools:

Textbooks

Video lessons matched directly to the problems in your textbooks.

Ask a Question

Can't find a question? Ask our 30,000+ educators for help.

Courses

Watch full-length courses, covering key principles and concepts.

AI Tutor

Receive weekly guidance from the world’s first A.I. Tutor, Ace.

30 day free trial, then pay 0.00/month

30 day free trial, then pay 0.00/year

You can cancel anytime

OR PAY WITH

Your subscription has started!

The number 2 is also the smallest & first prime number (since every other even number is divisible by two).

If you write pi (to the first two decimal places of 3.14) backwards, in big, block letters it actually reads "PIE".

Receive weekly guidance from the world's first A.I. Tutor, Ace.

Mount Everest weighs an estimated 357 trillion pounds

Snapshot a problem with the Numerade app, and we'll give you the video solution.

A cheetah can run up to 76 miles per hour, and can go from 0 to 60 miles per hour in less than three seconds.

Back in a jiffy? You'd better be fast! A "jiffy" is an actual length of time, equal to about 1/100th of a second.