Solutes, solvents and how much will dissolve

Question 1

Which word describes this: sand that sinks to the bottom of water?

• A. insoluble
• B. saturated solution
• C. solute
• D. solvent

Question 2

A student adds salt to water until some stays on the bottom however much they stir. What have they made?

• A. an insoluble solvent
• B. a gas
• C. a pure substance
• D. a saturated solution

Question 3

12 g of salt is dissolved in 100 g of water. What is the mass of the solution, in g?

Answer g

Question 4

Which word describes this: a solution in which no more solute will dissolve?

• A. solution
• B. saturated solution
• C. solvent
• D. insoluble

Question 5

Why does sugar dissolve faster in hot tea than in iced tea?

• A. Particles move faster, so solvent particles break the sugar apart more quickly
• B. Ice stops sugar existing
• C. Sugar melts in hot tea
• D. Hot tea has more water in it

Question 6

30 g of salt is dissolved in 250 g of water. What is the mass of the solution, in g?

Answer g

Question 7

Which word describes this: the clear mixture made when sugar dissolves in water?

• A. solvent
• B. solution
• C. solute
• D. insoluble

Question 8

Why does sugar dissolve faster in hot tea than in iced tea?

• A. Sugar melts in hot tea
• B. Ice stops sugar existing
• C. Hot tea has more water in it
• D. Particles move faster, so solvent particles break the sugar apart more quickly

Question 9

At 20 °C, 32 g of potassium nitrate dissolves in 100 g of water to make a saturated solution. What mass dissolves in 50 g of water at 20 °C, in g?

Answer g

Question 10

Which word describes this: the liquid that does the dissolving?

• A. solute
• B. solution
• C. insoluble
• D. solvent

Question 11

Nail varnish does not dissolve in water but does dissolve in acetone. What does this show?

• A. Whether a substance dissolves depends on the solvent
• B. Acetone is a solute
• C. Nail varnish is a gas
• D. Water dissolves everything

Question 12

10 g of salt is dissolved in 250 g of water. What is the mass of the solution, in g?

Answer g

Question 13

Which word describes this: the liquid that does the dissolving?

• A. solvent
• B. saturated solution
• C. insoluble
• D. solution

Question 14

A student adds salt to water until some stays on the bottom however much they stir. What have they made?

• A. a saturated solution
• B. a pure substance
• C. a gas
• D. an insoluble solvent

Question 15

20 g of salt is dissolved in 200 g of water. What is the mass of the solution, in g?

Answer g

Question 16

Which word describes this: the water in salt water?

• A. solution
• B. solvent
• C. saturated solution
• D. solute