Describe the formation of an aqueous LiBr solution.

Calculate the mass/volume percent $(\mathrm{m} / \mathrm{v})$ for the solute in each of the following solutions:

a. 2.50 g of LiCl in 40.0 mL of LiCl solution

b. 7.5 g of casein in 120mL of low-fat milk

Calculate the mass/volume percent m /v for the solute in each of the following solutions:

a. 75 g of $\mathrm{Na}_2 \mathrm{SO}_4$ in 250 mL of $\mathrm{Na}_2 \mathrm{SO}_4$ solution

b. 39 g of sucrose in 355 mL of a carbonated drink

Calculate the mass percent $(\mathrm{m} / \mathrm{m})$ for the solute in each of the following solutions:

a. 75 g of $\mathrm{NaOH}$ in 325 g of $\mathrm{NaOH}$ solution

b. 2.0 g} of $\mathrm{KOH}$ and 20.0 g of $\mathrm{H}_2 \mathrm{O}$

c. 48.5 g of $\mathrm{Na}_2 \mathrm{CO}_3$ in 250.0 g of $\mathrm{Na}_2 \mathrm{CO}_3$ solution

Calculate the mass percent (m /m) for the solute in each of the following solutions:

a. 25g of KCl and 125g of $\mathrm{H}_2 \mathrm{O}$

b. 12 g of sugar in 225 g of tea solution with sugar

c. 8.0 gof $\mathrm{CaCl}_2$ in 80.0 g of $\mathrm{CaCl}_2$ solution

What is the difference between a 10 % ( v / v ) methanol $(\mathrm{CH}_3 \mathrm{OH})$ solution and a $10 % ( m / m ) methanol solution?

What is the difference between a 5 % (m / m( glucose solution and a 5 % (m / v) glucose solution?

Describe the formation of an aqueous KI solution.

Explain the following observations:

a. More sugar dissolves in hot tea than in iced tea.

b. Champagne in a warm room goes flat.

c. A warm can of soda has more spray when opened than a cold one.

A solution containing 80 g of $\mathrm{NaNO}_3$ in 75 g of $\mathrm{H}_2 \mathrm{O}$ at $50^{\circ} \mathrm{C}$ is cooled to $20^{\circ} \mathrm{C}$.

a. How many grams of $\mathrm{NaNO}_3$ remain in solution at $20^{\circ} \mathrm{C}$ ?

b. How many grams of solid $\mathrm{NaNO}_3$ crystallized after cooling?

A solution containing 80. g of KCl in 200 g of $\mathrm{H}_2 \mathrm{O}$ at $50^{\circ} \mathrm{C}$ is cooled to $20^{\circ} \mathrm{C}$.

a. How many grams of KCl remain in solution at $20^{\circ} \mathrm{C}$ ?

b. How many grams of solid KCl crystallized after cooling?

Using the above table, determine whether each of the following solutions will be saturated or unsaturated at $50^{\circ} \mathrm{C}$ :

a. Adding 25 g of KCl to 50 g of $\mathrm{H}_2 \mathrm{O}$

b. Adding 150 g of $\mathrm{NaNO}_3$ to 75 g of $\mathrm{H}_2 \mathrm{O}$

c. Adding 80. g of sugar to 25 g of $\mathrm{H}_2 \mathrm{O}$

Use the previous table to determine whether each of the following solutions will be saturated or unsaturated at $20^{\circ} \mathrm{C}$ :

a. Adding 25 g of KCl to 100 g of $\mathrm{H}_2 \mathrm{O}$

b. Adding 11 g of $\mathrm{NaNO}_3$ to 25 g of $\mathrm{H}_2 \mathrm{O}$

c. Adding 400 g of sugar to 125g of $\mathrm{H}_2 \mathrm{O}$

State whether each of the following refers to a saturated or unsaturated solution:

a. A crystal added to a solution does not change in size.

b. A sugar cube completely dissolves when added to a cup of coffee.