Thursday, 5/7 Attendance! Concentration Calculations

Determine the molarity of 2.25 mole of sulfuric acid, H₂SO₄, dissolved in 725 mL of solution

• 322.2 M

• 3.1 M

• 0.32 M

• 2.25 M

What is the molarity of 3 mole of hydrochloric acid in 3 L of water

• 3

• 1

• 6

• 9

How many moles of NaCl are present in a solution with a molarity of 8.59M and 125 mL of solution?

• 1.07 gram

• 62.7 grams

• 62.7 mol

• 1.07 mol

Molarity is measured in

• mols per L

• moles per mL

• moles per kJ

• moles per kg

The ___ is the thing being dissolved

• solute

• solvent

How many liters would you need to make a 1 M solution if you have 6 mol of Sodium Hydroxide?

• 2

• 4

• 3

• 6

What is the concentration, in percent by mass, of 0.62 g of solute in 45.0 g of solution?

• 0.014 %

• 0.13%

• 1.4 %

What is the concentration, in percent by volume, of 15.3 mL of solute in 2.65 L of solution?

• 0.58%

• 0.0058%

• 5.8%

What mass of solute is needed to make 75.0 g of a 3.4% solution?

• 22 g

• 2.55 g

• 0.05 g

What is the concentration of a solution in parts per million if 0.02 grams of NaCl is dissolved in 1000 grams of water?

• 2 ppm

• 200 pm

• 20 ppm

• 0.2 ppm