Chemistry Molarity and Solution Quiz

What is the molarity of a solution prepared by dissolving 0.50 moles of NaCl in 1.25 liters of solution?

• 0.25 M

• 0.40 M

• 0.50 M

• 4.0 M

How many moles of HCl are present in 2.00 liters of a 0.75 M HCl solution?

• 1.00 mol

• 1.50 mol

• 2.75 mol

• 0.75 mol

What volume (in liters) of solution is needed to dissolve 1.20 moles of KNO3 to make a 0.60 M solution?

• 2.40 L

• 2.00 L

• 1.20 L

• 0.72 L

What is the molarity of a solution made by dissolving 29.2 g of NaOH (molar mass = 40.0 g/mol) in 500 mL of water?

• 1.00 M

• 0.73 M

• 1.46 M

• 2.30 M

Using the dilution formula, M1V1 = M2V2. What volume of 6.0 M H2SO4 is needed to prepare 250 mL of a 1.5 M solution?

• 62.5 mL

• 62.5 mL

• 62.5 mL

• 62.5 mL

Using the dilution formula, M1V1=M2V2. A student dilutes 50.0 mL of a 2.0 M solution to make a 0.50 M solution. What is the final volume of the solution?

• 100.0 mL

• 200.0 mL

• 250.0 mL

• 300.0 mL

How many liters of a 1.0 M solution are needed to dissolve 98.1 g of H2SO4 (molar mass = 98.1 g/mol)?

• 0.50 L

• 0.10 L

• 1.00 L

• 2.00 L

What volume (in mL) of 0.80 M NaOH solution is needed to provide 0.040 moles of NaOH?

• 20 mL

• 25 mL

• 50 mL

• 100 mL

If 25.0 g of glucose (C6H12O6; molar mass = 180 g/mol) are dissolved to make 500 mL of solution, what is the molarity of the solution?

• 0.28 M

• 0.14 M

• 0.56 M

• 0.07 M

A 3.0 M solution of NaCl has a volume of 0.250 L. How many moles of NaCl are present?

• 0.50 mol

• 0.25 mol

• 0.75 mol

• 1.25 mol