Molarity and Mass Percent

How many grams of solute are dissolved in 125.0 mL of 5.00 M NaCl?

• 0.625 g NaCl

• 36.52 g NaCl

• 36.5 g NaCl

• 0.625 mol NaCl

• none are correct

What mass of solute is needed to make 75.0 g of a 3.4% solution?

• 2.55 g

• 22 g

• 0.05 g

• 5.0 g

• none are correct

What is the molarity of 4 grams of barium chloride (BaCl₂) in 3,800 mL of solution?

• 0.018 M

• 0.005 M

• 1.052 M

• 1.5 M

• none are correct

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

• 2

• 3

• 4

• 6

• none are correct

We mixed 28 grams of CuSO₄ with 200 mL of water. If CuSO₄ molar mass is 160 g, then the molarity is

• 0.88 M

• 0.14 M

• 1.1 M

• 1.0 M

• none are correct

Tags

NGSS.HS-PS1-7

Which sweet tea would you expect to taste the sweetest?

• M

• M

• 3.1 M

• 2.5 M

• none are correct

What is the molarity of 5.4 g of NaCl (MM=58.45g/mol) in 6.7 L of solution?

• 0.018 M

• 0.014 M

• 1.052 M

• 0.062 M

• none are correct

Find the molarity of 186.55 g of sucrose, C₁₂H₂₂O₁₁ (Molar Mass = 342) in 250 mL of water.

• 2.18 M

• 0.746 M

• 1.18 M

• 0.545 M

• none are correct

What is the concentration of a solution that has a volume of 2.5 L and contains exactly 660.0 grams of calcium phosphate? **Find the chemical formula first**

• 264 M

• 0.85 M

• 3.7 M

• 2.0 M

• none are correct

You can make a solution more concentrated by adding __________.

• solute

• solvent

• water

• liquid

• none are correct

Tags

NGSS.HS-PS1-5