Prepare solutions of a given concentration

What is the molarity of 4 g of sodium chloride in 3,800 mL of solution?

• 0.018 M

• 0.0011 M

• 1.052 M

• 0.062 M

How many moles of sodium chloride are present in a solution with a molarity of 8.59 M and a volume of 125 mL?

• 1074 mol

• 0.069 mol

• 1.07 mol

• 62.7 mol

How many grams of calcium hydroxide are needed to produce 500. ml of 1.66 M calcium hydroxide solution?

• 38.7 g
• 61.5 g
• 94 g
• 19.7 g

How many liters would you need to make a 1 M solution if you have 6 mol of sodium hydroxide?

• 2

• 3

• 4

• 6

During a lab a student must increase molarity of solution without changing the volume. The student should

• add water

• evaporate water

• add solute

How many moles of sodium sulfate is needed to make 2.5 L of 2.0 M solution?

• 5 moles

• 1 moles

• 1.25 moles

• 0.80 moles