A 1.00-L solution saturated at

$$25 ^ { \circ } \mathrm { C }$$

with calcium oxalate

$$(CaC_2O_4)$$

contains 0.0061 g of

$$CaC_2O_4.$$

Calculate the solubility-product constant for this salt at

$$25 ^ { \circ } \mathrm { C }$$

Calculate the molar solubility of

$$Ni( OH)_2$$

when buffered at pH 12.0.

What percentage of an iron anchor's weight will be supported by buoyant force when submerged in salt water?

Name two insoluble salts of each of the following ions.\

$$\mathrm{ZnSO}_4$$

Write formula equations and net ionic equations for the hydrolysis of each salt in water. ammonium bromide

A 25.0-mL of 0.20 M HF solution is titrated with a 0.20 M NaOH solution. Calculate the volume of NaOH solution added when the pH of the solution is (a) 2.85, (b) 3.15, (c) 11.89. Ignore salt hydrolysis.

Which of these salts would hydrolyze to produce an acidic aqueous solution, and why? LiCl

The following molecule has a barrel shape (in which the benzene rings are the “walls” of the barrel). It forms a noncovalent complex with the iodide salt of acetylcholine in chloroform solvent. Describe the orientation of the acetylcholine molecule within the complex.

Calculate the molar mass of each hydrated compound. Note that the water of hydration is included in the molar mass.
$\mathrm{MgSO}_4 \cdot 7 \mathrm{H}_2 \mathrm{O}$, Epsom salt

Name the salt $\ce {[Ni(H2O)3(CO)]SO4}$. The oxidation number of nickel is +2.

Identify each of the following as an acid, base, or salt, and give its name:

$$Ba(OH)_2$$

Name two insoluble salts of each of the following ions.\

$$\mathrm{Ni}^{2+}$$

The most acidic of the following $0.10 \mathrm{M}$ salt solutions is
(a) $\mathrm{Na}_2 \mathrm{~S}$;

When salt dissolves in water, the sodium and chloride ions separate. Explain why this might occur.