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i guessed 2.133 M

2. How many moles of potassium iodide, KI, must be used to make 1.500 L of a 0.2 M solution?

.3 m

.2 M

.2 m I know its not this one...

.2 g

3. What is the molarity of the solution produced when 151 g of sodium chloride, NaCl is dissolved in enough water to prepare .375 L of solution?

.469 M this one is wrong

9.456 M

3.57 M

6.89 M

4. How many grams of potassium chloride, KCl, are needed to prepare 0.630 L of a 2.50 M solution of potassium chloride?

1.575 M

117 g

2.54 m

23.19 g this one is wrong