Download the App!

Get 24/7 study help with the Numerade app for iOS and Android! Enter your email for an invite.

$\mathrm{CaSO}_{4}\left(K_{\mathrm{sp}}=2.4 \times 10^{-5}\right)$ has a larger $K_{\mathrm{sp}}$ valuethan that of $\mathrm{Ag}_{2} \mathrm{SO}_{4}\left(K_{\mathrm{sp}}=1.4 \times 10^{-5}\right) .$ Does itfollow that $\mathrm{CaSO}_{4}$ also has greater solubility $(g / L) ?$

Get the answer to your homework problem.

Try Numerade free for 7 days

Like

Report

$\mathrm{Ag}_{2} \mathrm{SO}_{4}$ has more solubility

Chemistry 102

Chapter 16

Acid-Base Equilibria and Solubility Equilibria

Acid-Base Equilibria

Aqueous Equilibria

Carleton College

Rice University

University of Maryland - University College

Brown University

Lectures

00:41

In chemistry, an ion is an atom or molecule that has a non-zero net electric charge. The name was coined by John Dalton for ions in 1808, and later expanded to include molecules in 1834.

24:14

In chemistry, a buffer is a solution that resists changes in pH. Buffers are used to maintain a stable pH in a solution. Buffers are solutions of a weak acid and its conjugate base or a weak base and its conjugate acid, usually in the form of a salt of the conjugate base or acid. Buffers have the property that a small change in the amount of strong acid or strong base added to them results in a much larger change in pH. The resistance of a buffer solution to pH change is due to the fact that the process of adding acid or base to the solution is slow compared to the rate at which the pH changes. In addition to this buffering action, the inclusion of the conjugate base or acid also slows the process of pH change by the mechanism of the Henderson–Hasselbalch equation. Buffers are most commonly found in aqueous solutions.

02:57

(A): Solubility of $\mathr…

01:17

$\mathrm{Ag}_{2} \mathrm{S…

00:53

00:39

In principle, amphoteric …

02:40

Can the solubility of $\ma…

04:57

Which has the greater mola…

05:37

04:24

Calculate the molar solubi…

Hello. So today we're going to be looking at calcium sulphate and silver sulfate. So calcium sulphate has a kiss soluble ity product Caspi of 2.4 times 10 to the negative five. Silver sulfate has a case p of one 0.4 times 10 to the negative five. So calcium sulfate has ah, higher Casspi. So does that mean the calcium sulphate is more soluble as a greater soluble ity? While Caspi isn't really the soluble ity, sally ability is something different. So let's find the scalability of both compounds. So we have calcium sulphate as a solid and when it's placed in water, some of it will associate into cow assume two plus and self eight to minus. So the chaos p is this is the concentration of the calcium and the sulphate. Now let's consider the Moeller soluble ity. So we have some moles of calcium sulphate. We've dissolved it into a certain volume while that one mole of calcium sulfate will make one mall of calcium two plus So calcium two plus would be us and then one more all of it calcium sulphate will make one mole of sulphate ions, so that will also be the Muller solid Billy. So the Casspi is the concentration of the calcium terms, the concentration of the sulfate. So the Caspi would just be the Mueller solid ability squared in this case. So let's find the Moeller Souljah bility. We take the square root of both sides and we will see that the Mueller saw you abilities is 4.9 times 10 to the negative 30. But this is it. In polarity, it's in moles per liter. We find Want to find Saul? You built just regular salty ability, which is in grams per liter. So what should we dio? We should convert moles to grams. So one mole of calcium sulfate weighs 136 0.14 grams, so monthly multiply. We will see that the Sol you bility is 0.6 seven grams per liter. So that's the Sally ability of calcium sulfate. Well, what about silver Self? It? Let's take a look at silver sulphate, so silver sulfate doesn't break apart into two ions like calcium sulfate. Silver salt. Fate picks apart into three I owns, so it's Caspi will be a little more complex, so we have to silver ions and one sulphate on. So if we divide if we dissolve six I mean, if we give up resolve s moles of silver sulfate, we will get to us two times the Moeller soluble ity of silver and one us of sulphate. So the Caspi here would be the silver concentration squared because I was a two in front of it. So that would be to us squared times the sulphate concentration. So that would be a total of four s. It's cute, and that is equal to 1.4 times 10 to the negative. So let's divide both sides by four as cubed is equal to 35 times 10 to the negative six. Now let's take a Cuba crude. We will see that the Mueller Celje ability of silver sulfate is zero 0.0 15 but that is in most per liter or molar ity. So now we have to convert it to grams per liter. So we've got 0.15 moles for leader. So now let's convert silver's sulphate two grams. So one mole silver. So fate is 300 and 11 point 799 and so we will see But in total we have for 0.7 grams per liter So as we can see even though okay s p of calcium sulphate is higher When we solve for the soluble ity we will see that we have that silver sulphate has a greater soluble ity.

View More Answers From This Book

Find Another Textbook