Calculate the molarity and calculate the volume of

Question

1. A chemistry lab experiment requires 25.2 g of silver nitrate. How many grams of a 15.5% solution of  silver nitrate should be used?

2. Calculate the molarity of  the following:

a) 0.25 mol of solute in 75.0 mL of solution.

b) 275 g C₆H₁₂O₆ in 775 mL of solution

3. How many milliliters of 0.75M H₃PO₄ will contain the following?

a) 0.15 mol H₃PO₄

b) 35.5 g H₃PO₄

4. Calculate the volume of concentrated reagent  18M H₂SO₄ required to prepare 225 ml of 2.0M solution.

5. Use the equation to calculate the following:

  2KMnO₄(aq.) + 16 HCl (aq) à 2MnCl₂ (aq) + 5 Cl₂ (g) +8 H₂O (l) + 2KCl (aq)

a) the volume of 2.50M HCl needed to produce 125 mL of 0.525 M KCl

b) the molarity (M) of HCl solution when 22.20 mL react with 15.60 mL of 0.250 M KMnO₄

c) the liters of Cl₂ gas at STP produced by the reaction of125mL of 2.5M HCl

6. A solution contains 100.0 g of ethylene glycol (C₂H₆O₂) in 150.0 g of water. Calculate the following :

a) its molality,
b) freezing point and
c) boiling point