5-4-18 Dilution, Molarity, Percent Solution Practice

What is the percent composition of a sugar solution where 10 grams of sugar is added to 100 grams of water?

• .10%
• 0.091%
• 9.090909%
• 9.1%

What is the percent by mass, concentration of sucrose in a solution made by dissolving 8.5g of sucrose in 95.6g of water?

• 8.2

• 9.2

• 10.2

• 11.2

Calculate the volume percent, %(v/v), of a solute in the following solution: 40.0 mL of methyl alcohol in enough water to give 500 mL of solution.

• 2.25

• 5.54

• 7.41

• 9.94

A bottle of the antiseptic hydrogen peroxide is labeled 12.0% (v/v). How many mL are in a 2240mL bottle of this solution?

• 222

• 230

• 245

• 269

How many grams of glucose (C6H12O6) are needed to make 4320g of a 2.5% glucose (m/m) solution?

• 100

• 108

• 120

• 123

A solution is made by dissolving 132 g of sodium chloride in 2300g of water. What is the percent by mass?

• 1.25

• 3.35

• 5.43

• 8.80

What is the percent by volume of a solution formed by added 15 L of acetone to 65 L of water?

• 19

• 22

• 25

• 30

An 900 g solution of Kool-Aid contains 600 g of water. What is the mass percent of solute in this solution?

• 12.3

• 25.5

• 33.3%

• 45.5

If a 4000g solution of salt water contains 30g of salt, what is its mass percent?

• 0.14%

• 0.28%

• 0.55%

• 0.75%

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

Tags

NGSS.HS-PS1-7