Molarity Practice

What volume, in milliliters, of 10.0 M NaOH is needed to prepare 300.0 mL of 2.00 M NaOH by dilution?

• 0.067 mL

• 60.0 mL

• 100 mL

• 125 mL

What does it mean to dilute a solution?

• lower the concentration of solute per solvent

• increase the concentration of solute per solvent

Tags

NGSS.HS-PS1-5

Which equation is used to find molarity?

• Moles solute/L solution

• Moles solute/kg solution

• Moles solute/kg solvent

• Grams solute/L solution

What is the molarity of 4 g of NaCl (MM=58.45) in 3,800 mL of solution?

• 0.018 M

• 0.0011 M

• 1.052 M

• 0.062 M

What is the molarity of a solution made by adding 1.565 moles of PbNO₃ to 500 mL?

• 300. M

• 31.3 M

• 3.13 M

• 1.56 M

Tags

NGSS.HS-PS1-5

Find the molarity of .545 mol of sugar (C₁₂H₂₂O₁₁) in 250. mL of water.

• 2.18 M

• 0.746 M

• 1.18 M

• 0.545 M

What is the molarity of 3 mole of hydrochloric acid in 3000 mL of water.

• 3M

• 1M

• .01M

• .3M

How many moles of sugar are present in a 1L of lemonade with a molarity of 2.75M?

• 2.75 g

• 2.75 mol

• 2.75 mL

• 2.75 L

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

• 2

• 3

• 4

• 6 

How many moles of NaCl are present in a solution with a molarity of 3M and 1.25 L of solution?

• 3.75 gram

• 2.4 mol

• 3.75 mol

• .41 grams