question and answer below

Question

How many grams of (NH₄)₂SO₄ are needed to create 750 mL of 0.1 M ammonium sulfate?

1. a. 9.9 g
2. b. 99 g
3. c. 7.5 g
4. d. 0.99 g

Answer 1

Molar mass ammonium sulfate = 132.14 g/mole

0.1 mole/L = 0.1M and 750 ml = 0,75 L

0.1 mol/L x 0.75 L x 132.14 g/mole = 9.9 g <—ANSWER a