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Molarity and Dilutions

Authored by Lisa Thompson

Science

10th Grade

NGSS covered

Molarity and Dilutions
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15 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A solution is made by dissolving 0.50 mole of NaCl in enough water to give a final volume of 0.40 L. What is the molarity of the solution?

0.10 M

0.40 M

1.25 M

2.33 M

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

50 ml of a 1 M solution is diluted until the final volume is 80ml. How much water was added?

50 ml

1.3 ml

30 ml

130 ml

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the molarity of a solution made by diluting 26.5 mL of 6.00M HNO3 to a volume of 250.0 mL?

15.9 M

0.636 M

0.642 M

1.59 M

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Which one of the following diagrams has the highest boiling point?

1

2

3

4

5

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NGSS.MS-PS3-4

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Calculate the molarity of the following solution:  1.0 mole of KCl in 750.0 mL of solution.

0.750 M

99 M

1.3 M

2.0 M

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

How many mL of stock solution of 2M NaCl do you need to prepare 100 mL of 0.150M NaCl?

7.5 mL

15 mL

1333 mL

200 mL

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

How many mL of 1.0M KBr solution would you need to prepare 250 mL of a 0.2M dilution?

175 mL

250 mL

50 mL

5 mL

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