Concentration and Dilution

Concentration and Dilution

9th - 12th Grade

22 Qs

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Concentration and Dilution

Concentration and Dilution

Assessment

Quiz

Chemistry

9th - 12th Grade

Medium

NGSS
HS-PS1-5

Standards-aligned

Created by

FLORENT MARIE MOFO WAMBA

Used 2+ times

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22 questions

Show all answers

1.

FILL IN THE BLANK QUESTION

1 min • 1 pt

What is the molarity of a 0.5L sample of a solution that contains 60.0 g of sodium hydroxide (NaOH)

2.

FILL IN THE BLANK QUESTION

1 min • 1 pt

Media Image

What volume is needed to make a 2.45 M solution of KCl using 0.50 mol of KCl?

3.

FILL IN THE BLANK QUESTION

1 min • 1 pt

What is the molality of a solution made by dissolving 2 moles of NaOH in 400 grams of water?

4.

FILL IN THE BLANK QUESTION

1 min • 1 pt

What is the percent by mass of a solution made by dissolving 20.0 g of NaCl into 180.0 g of water?

Answer explanation

20g / (180g+ 20g) x 100 = 10 %

5.

FILL IN THE BLANK QUESTION

1 min • 1 pt

What is the concentration, in percent by volume, of 15.3 mL of solute in 2.65 L of solution?

6.

FILL IN THE BLANK QUESTION

1 min • 1 pt

What is the mole fraction of NaOH in an aqueous solution that contains 22.8% NaOH by mass?

(1L of H2O has a mass of 1000g, 1 mol H2O = 18.02g)

7.

FILL IN THE BLANK QUESTION

1 min • 1 pt

What is the concentration of a solution in parts per million if 0.02 grams of NaCl is dissolved in 1000 grams of solution?

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