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Molarity and Dilutions Review

Authored by Karla Barrow

Chemistry

9th - 12th Grade

Used 1+ times

Molarity and Dilutions Review
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6 questions

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1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

You need to make 200 mL of a 0.20 M aqueous solution of sodium chloride. The only available solution is 1.0 M. Determine how to make the needed dilution.

Add 160 mL to the initial volume

Add 160 grams to the initial volume

Evaporate 160 mL from the initial volume

the experiment cannot be conducted with the materials provided

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

A dilution is when

solute is added to the volume of stock solution

water is added to the volume of stock solution

solute is removed from the volume of stock solution

water is removed from the volume of stock solution

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

What volume, in milliliters, of 10.0 M NaOH is needed to prepare 300 mL of 2.00 M NaOH by dilution?

0.067 mL

60.0 mL

100 mL

125 mL

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

If 0.775 L of 1.00 M NaOH is diluted to 1.00 L, the resulting solution contains

0.225 mol NaOH

0.775 mol NaOH

1.25 mol NaOH

2.45 mol NaOH

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

What is a concentrated solution?

a solution that has a large amount of solute in a large volume of solvent

a solution that has an equal amount of solute in the same volume of solvent

a solution that has a small amount of solute in a large volume of solvent

a solution that has a large amount of solute in a small volume of solvent

6.

MULTIPLE SELECT QUESTION

5 mins • 1 pt

Which of the following solutions has a molarity of 2.0?

0.050 mole of solute in 0.0250 L of solution

2.0 moles of solute in 0.5000 L of solution

3.0 moles of solute in 1.5000 L of solution

none of the above

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