Molarity

What is the molarity of a 2 liter solution containing 5 moles of NaCl?

• 2.5

• 0.4

• 2.5 moles/liter

• 10 moles/liter

Calculate the molarity of a solution containing 1.5 moles of NaCl in 0.5 L of solution.

• 1.5 M

• 3 M

• 0.33 M

• 0.75 M

How many grams of NaCl (molar mass = 58.44 g/mol) are needed to prepare 250 mL of a 2 M solution?

• 14.61 g

• 29.22 g

• 58.44 g

• 116.88 g

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DOK Level 3: Strategic Thinking

• 0.05 L

• 0.1 L

• 0.2 L

• 0.5 L

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DOK Level 3: Strategic Thinking

If 400 mL of a 8.0 M solution is diluted to a molarity of 5.3M, about how much solvent volume was added?

• 200 mL

• 600 mL

• 400 mL

• 180 mL

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

How many L would you need to make a 1 M solution if you have 6 Mol of Sodium Hydroxide? 

• 2

• 3

• 4

• 6 

What is the molarity of 3 mole of hydrochloric acid in 3 L of water.

Remember, M = \frac{mol}{L}

• 3 M

• 1 M

• 6 M

• 9 M

What is the molarity of a solution formed by dissolving 0.45 mol of potassium hydroxide (KOH) in enough water to form 0.674 L of solution? Use the appropriate formula to solve for the missing variable.

• 0.30 M

• 0.67 M

• 1.49 M

How many moles of sodium nitrate are there in 0.610 L of a 0.7 M solution of sodium nitrate? Use the appropriate formula to solve for the missing variable.

• 0.43 mol

• 0.87 mol

• 1.15 mol