Quiz- Molarity

A strong electrolyte is one that __________ completely in solution.

• reacts
• associates
• disassociates
• stays a solid

What is the molarity of a 0.1 L solution in which 4.67 grams of HCl is dissolved?

• 5 M
• 4 M
• 2.2 M

• 1.3 M

How many grams of hydrochloric acid, HCl, are there in 350.0 mL of a 4.000 M solution?

• 20.3 grams
• 36.6 grams
• 51.0 grams

• 300 grams

What is the concentration (M) of a NaCl solution prepared by dissolving 4.7 g of NaCl in 350 mL of water?

• 18 M
• 0.16 M
• 0.45 M
• .23 M

How many grams of CH₃OH must be added to water to prepare 150 mL of a solution that is 1.5 M CH₃OH?

• 7.2 grams

• 2.4 grams
• 9.6 grams
• 4.3 grams

How many grams of H₃PO₄ are in 175 mL of a 4.5 M solution of H₃PO₄ ?

• 0.61 grams
• 60 grams
• 20 grams
• 77 grams

The molarity (M) of an aqueous solution containing 32.5 g of sucrose C₁₂H₂₂O₁₁ in 55.5 mL of solution is __________.

• 1.71

• 1.85
• 3.52
• 0.104

How many grams of sodium chloride (NaCl) are there in 45.0 mL of a 2.75 M aqueous solution of sodium chloride?

• 0.105 grams
• 7.23 grams

• 3.21 grams
• 12.2 grams

An aqueous ethanol solution of 500 mL (V1) was diluted to 5.00 L (V2), giving a concentration of 0.0500 M (M2). The concentration of the original solution was __________ M?

• 0.500 M

• 0.250 M

• 5.00 M

• 1.60 M

The molarity of a solution prepared by diluting 41.62 mL (V1) of 4.005 M (M1) aqueous K₂Cr₂O₇ to 400.0 mL (V2) is __________M?

• 57.2 M
• 0.0044 M
• 0.417 M

• 0.870 M