FV08.02 Concentration - Molarity & Mass Percent

Which sugar water would you expect to taste the sweetest?

• 1M

• 3M

• 3.1M

• 2.5M

Which of the following is the correct formula for calculating molarity?

• moles of solute/ volume of solution (L)

• moles of solute/ / mass of solution (g)

• # particles/ Avogadro's #

• mass of solute (g)/ volume of solution (L)

The ___ is the thing being dissolved

• solute
• solvent

How many liters of 1 M solution would contain 6 moles of Sodium Hydroxide?

• 2

• 3

• 4

• 6

What is the molarity of 4.00 g of NaCl (molar mass=58.45) in 3,800 mL of solution?

• 0.018 M

• 0.0011 M

• 1.052 M

• 0.062 M

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

• 2.18 M
• 0.746 M
• 1.18 M
• 0.545 M

How many moles of NaCl 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

Tags

NGSS.HS-PS1-7

How many grams of AgNO₃ (MM = 169.87) are needed to prepare 250 mL of 0.125M solution?

• .03g

• 0.5g

• 5.3g

• 84.9g

How many mL of 10.8M HCl are required to make 100.0 mL of 3.00M acid?

• 27.8 mL
• 27.78 mL
• 2.8 mL
• 278 mL

Tags

NGSS.HS-PS1-7

Calculate the molarity of the following solution:  1.0 mole of KCl in 750.0 mL of solution.

• 0.750 M
• 99 M
• 1.3 M
• 2.0 M