Molarity and Mass Percent

Molarity and Mass Percent

12th Grade

15 Qs

quiz-placeholder

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Molarity and Mass Percent

Molarity and Mass Percent

Assessment

Quiz

Science

12th Grade

Hard

Created by

Lisa Thompson

FREE Resource

15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

You are adding a chlorine solution to a swimming pool. The stock solution of chlorine is 1000M. Your swimming pool (75,000 L) needs to be at a concentration of 0.1M. How much of the stock solution should you add?

7500 L

.75 L

750 L

7.5 L

2.

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 mL?

15.9 M

0.636 M

0.642 M

1.59 M

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Determine the molarity. 1.457 mol KCl in 1.500 L of solution

.9713 M

1.0295 M

1 M

.48565 M

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Find the molarity of 186.55 g of sucrose, C12H22O11 (MM = 342) in 250 mL of water.

2.18 M

0.746 M

1.18 M

0.545 M

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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

7.5 mL

15 mL

1333 mL

200 mL

none are correct

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Calculate the Molarity in a solution containing 40.0 g of NaCl dissolved in 500.0 mL of H2O.

0.08 M

12.5 M

1.37 M

0.74 M

none are correct

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

If I have 340 mL of a 0.5 M NaBr solution, what will the concentration be if I add 560 mL more water to it?

.188 M

3.78 M

.389 M

1.76 M

none are correct

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