Mixtures and Solutions: Investigation 4 Review

What happens to salt as you add it to water?

• It dissolves

• It evaporates

Tags

NGSS.MS-PS1-2

How does concentration change as each spoon of salt is added to water until saturation is reached?

• Concentration increases

• Concentration decreases

What happens to the salt once saturation is reached?

• The salt evaporates and sinks to the bottom of the container.

• The salt dissolves and sinks to the bottom of the container.

Tags

NGSS.MS-PS1-2

What happens to the concentration once saturation is reached?

• Concentration increases

• Concentration stays the same

A chemist found that it takes 100 grams (g) of a solid to saturate 250 milliliters (mL) of water. Which statement describes the best method for dissolving more of the solid?

• Decrease the volume of the water to 100mL

• Increase the temperature of the water

• Increase the amount of the substance to 150 g.

• Stir the solution more.

Tags

NGSS.MS-PS1-4

What is the first step to determine solubility?

• Once saturated, filter the solution and find the mass.

• Add 1 scoop of substance to the bottle and shake.

• Add 50mL of water to a bottle.

• Continue to add scoops, 1 at a time, until the solution is saturated.

What is the second step to determine solubility?

• Once saturated, filter the solution and find the mass.

• Add 1 scoop of substance to the bottle and shake.

• Add 50mL of water to a bottle.

• Continue to add scoops, 1 at a time, until the solution is saturated.

What is the third step to determine solubility?

• Once saturated, filter the solution and find the mass.

• Add 1 scoop of substance to the bottle and shake.

• Add 50mL of water to a bottle.

• Continue to add scoops, 1 at a time, until the solution is saturated.

What is the fourth step to determine solubility?

• Once saturated, filter the solution and find the mass.

• Add 1 scoop of substance to the bottle and shake.

• Add 50mL of water to a bottle.

• Continue to add scoops, 1 at a time, until the solution is saturated.

A student makes a solution using 100mL of water and two spoons of solid. Once spoon of solid has a mass of 5g. The students lets the solution sit until all the water evaporates. What is the mass after all the water evaporated?

• 5g

• 8g

• 10g

• 100g

Tags

NGSS.MS-PS1-4

NGSS.MS-PS1-5