Unit 8 Solutions Review Quiz

Which would NOT increase the rate at which a sugar cube dissolves?

• Reducing the amount of solvent

• Crushing the sugar cube

• Stirring the solution

• Heating the solvent

A solution that contains all of the solute it can hold at a given temperature is

• diluted.

• saturated.

• supersaturated.

• unsaturated.

A solution that is able to dissolve additional solute is best described as

• supersaturated.

• concentrated.

• saturated

• unsaturated.

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

How many grams of solute are dissolved in 125.0 mL of 5.00 M NaCl (MM = 58.45)?

• 0.625 g NaCl
• 625 g NaCl
• 36.5 g NaCl
• 0.04 mol NaCl

Tags

NGSS.HS-PS1-7

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

• .03g
• 0.5g
• 5.3g
• 84.9g

Tags

NGSS.HS-PS1-7

What is the molality of a solution when 12 g of NH₃ (molar mass NH₃ is 17 g) is dissolved in 250 g of water?

• .18 m

• 51 m

• 816 m

• 2.8 m

How many grams of NaOH (molar mass of NaOH is 40 g) do you need to add to 2 kg of water for a .3 m solution?

• 6 g

• .015 g

• .004 g

• 24 g

What is the molality of 1.2 g of HCl (molar mass of HCl is 35.45 g) in 750 g of water?

• 0.045 m

• 0.000045 m

• 0.0016 m

• 0.90 m

What is the pH of a solution that has a [H+] of 2.5 x 10-5?

• 4.60
• 5.0
• 2.5
• 7