**MHS Chemistry**

Moles and Concentration

Before we begin, a note about names. Compounds that produce the hydroxide ion
in solution are known as *bases*. Compounds that produce hydrogen
ions in solution are known as *acids*. Bases of this kind don't have
special names, but the acids do. If the acid is of the form "hydrogen _____ate"
then it would be called "_____ic acid" (example: hydrogen sulfate
is also "sulfuric acid"). If the acid is a *binary* acid (just
hydrogen and one other element), it is "hydro_____ic acid (example: HCl
is "hydrochloric acid"). Got it? Good.

- How many grams of NaOH are needed to prepare 1.0 liters of a 1.5 M solution?

- How many grams of HNO3 are used to prepare 2.00 liters
of a 1.00 M solution?

- How many grams of NaOH are required to prepare 5 liters of a 3 M solution?

- How many grams of NaOH are required to prepare 3.0 liters of a 2.0 M solution?

- How many grams of NaOH are required to prepare 1400 mL of a 3.00 M solution?

- How many grams of NaCl are required to prepare 500 mL of a 1.5 M solution?

- How many grams of KOH are required to prepare 1200 mL of a 0.50 M solution?

- How many grams of H2SO4 are required
to prepare 900 mL of a 2.5 M solution?

- How many grams of magnesium sulfate are required to prepare 1.0 kiloliter
of a 2.0 M solution?

- How many grams of HC2H3O2
are required to prepare 3.5 liters of a 1.5 M solution?

- 1.00 liter which contains 50.0 g NaOH.

- 5 liters which contains 126 g HNO3.

- 1400 mL which contains 120 g HC2H3O2.

- 500 mL which contains 63 g HN03.

- 1200 mL which contains 100 g sodium hydroxide.

- 800 mL which contains 196g H2SO4.

- 50 mL which contains 3.65 g HCl.

- 1.0 kiloliter which contains 56 kg KOH.

- 1500 ml. which comains 168 g KOH.

- 3 liters which contains 240 g NaOH.

- How many liters of 2 M KOH can be prepared from 560 g of the solute?
- What volume of 1.5 M NaOH can be prepared from 960 g of the solute?
- If 16 liters of sucrose (C12H22O11) solution contain 2.736 kg of sucrose, what is the molarity of the solution?
- Calculate the number of molecules of sugar in 4.0 liters of 0.10 M solution. (Hint #1: Don’t forget Avogodro's number! Hint #2: Do you need to know the formula for sugar?)
- Calculate the number of molecules of sugar in 500 mL of 3.00 M solution.
- Determine the number of moles of H2SO4 in 5000 mL of a 62% (by weight) solution of H2SO4 having a density of 1.52 g/mL.
- Calculate the molarity of a 29% (by weight) KOH solution having a density of 1.28 g/mL.
- How many mL of a 69% (by weight) HNO3 solution, having a density of 1.416 g/mL, are required to make 1000 mL of 2.00 M HN03 solution?