Concentration of Solutions

Which solution is more concentrated?

• 50 grams of sugar in 100 ml water

• 75 grams of sugar in 100 ml water

• 25 grams of sugar in 100 ml water

• 60 grams of sugar in 100 ml water

What would you do to make a solution more concentrated?

• add more solvent

• add more solute

• add more solvent and solute

• pour some of the solution out

Which solution is more concentrated?

• 20 g salt in 50 milliliters of water

• 40 g salt in 50 milliliters of water

• 30 g salt in 50 milliliters of water

• 10 g salt in 50 milliliters of water

Which action would NOT change the concentration of a solution at all?

• adding more solvent

• pouring out some of the solution

• evaporating some of the solute

• removing some solvent

To make a Kool-Aid solution less concentrated, which would you do?

• add more solute

• add more solvent

• pour out some of the Kool-Aid

• add more solvent AND solute

If you make a solution of Kool-Aid and it is too concentrated, what would be true about its taste?

• it would be too watery

• it would taste just right

• it would taste too sugary

• it would be too salty

What could you do to increase the concentration of a solution?

• pour out some of the solution

• add more solvent

• pour it into a larger container

• add more solute

Which is the most concentrated solution?

• 20 g of salt in 200 ml of water

• 50 g of salt in 100 ml of water

• 10 g of salt in 200 ml of water

• 20 g of salt in 100 ml of water

Which is the least concentrated solution?

• 10 g sugar in 100 ml water

• 20 g sugar in 500 ml water

• 20 g sugar in 100 ml water

• 10 g sugar in 500 ml water

A student mixes 35 grams of salt in 100 milliliters of water. How would the student make the solution MORE concentrated?

• add 20 g salt and 20 ml water

• add 20 g salt

• pour some of the solution out

• add 20 ml water