Solutions Review

What is the universal solvent?

• salt
• sugar
• water
• ice

Tags

NGSS.MS-ESS2-4

When you have added as much solute as can dissolve in the solvent, the solution is called:

• concentrated

• supersaturated

• saturated

• unsaturated

Which of the following is a saturated solution? (Assume all are dissolved in 100 mL of water)

• 20 grams of NaNO₃ at 50^∘C

• 52 grams of NH₄Cl at 50^∘C

• 12 grams of KClO₃ at 40^∘C

• 100 grams of KI at 20^∘C

If a saturated solution of NaNO₃ at 50°C is cooled to 20°C, how much solute will precipitate?

• 28 g

• 35 g

• 116 g

• 116 g

Tags

NGSS.MS-PS1-4

Which solute is the least soluble at 60°C?

• KClO₃

• NaCl

• KCl

• NH₃

Tags

NGSS.MS-PS1-4

A student is preparing solutions for a laboratory experiment by dissolving solid solutes in liquid solvents. Which action will increase the rate of solubility

• lowering the temperature of the solvent

• stirring the solute in the solution

• increasing the pressure on the solution

• increasing the particle size of the solute

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

Tags

NGSS.HS-PS1-5

How many moles are needed to make 2.5 L of a 3.8 M solution? 

• 9.5 mol
• 0.66 mol
• 1.5 mol
• 15 mol

According to Table F, which barium salt is insoluble in water?

• BaCO₃

• BaCl₂

• Ba(ClO₄)₂

• Ba(NO₃)₂

According to Reference Table F, which substance is most soluble?

• AgI

• CaSO₄

• PbCl₂

• K₂CO₃