Quiz | Chemical Calculations for Solutions

1

Which of the following factors affects the solubility of a particular substance?

Temperature

Nature of solute

Solvent

All of the above

2

What is the molarity of a solution that contains 8 moles of solute in 2 liters of solution?

M

M

10 M

16 M

3

What is the mass of NaCl in 250 mL of a 0.4 M solution?

0.1 g

5.84 g

36.5 g

93.4 g

4

What does not change when a solution is diluted by the addition of solvent?

Molarity of solution

Mass of solvent

Number of moles of solute

Volume of solvent

5

How many mL of a 2.0 M NaBr solution are needed to make 300.0 mL of 0.5 M NaBr?

25 mL

30 mL

75 mL

300 mL

6

What is the endpoint of a titration?

When the pH of the solution is < 7

When the pH of the solution is > 7

When the volume of the solution with a known concentration in the burette is used up

When the amount of acid and base are equal as shown by a color change of the indicator

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