Mixtures and Solutions I-Check: Saturation and Concentration

Dominick made a solution using 15 g of NaCl in 150 mL of H₂O. What should Dominick add to his original solution to make a solution twice as concentrated?

• 5 g NaCl

• 15 g NaCl

• 100 mL H₂O

• 150 mL H₂O

Dominick made a solution using 15 g of NaCl in 150 mL of H₂O. What should Dominick add to his original solution to make a solution that is half as concentrated?

• 5 g NaCl

• 15 g NaCl

• 100 mL H₂O

• 150 mL H₂O

Charlie, Veruca, and Augustus each used 10 mL C₆H₈O₇ to make solutions. Charlie made his solution using 1500 mL H₂O, Veruca used 500 mL H₂O, and Augustus used 1000 mL H₂O. Whose solution is the most concentrated?

• Charlie's

• Veruca's

• Augustus's

Charlie, Veruca, and Augustus each used 10 mL C₆H₈O₇ to make solutions. Charlie made his solution using 1500 mL H₂O, Veruca used 500 mL H₂O, and Augustus used 1000 mL H₂O. Whose solution is the least concentrated?

• Charlie's

• Veruca's

• Augustus's

The concentration of a solution ____ with each addition of solute.

• increases

• decreases

• remains the same

True or False: The concentration of a solution does not change after it reaches saturation, no matter how much solute is added.

• True

• False

True or False: All mixtures are solutions but not all solutions are mixtures.

• True

• False

Solution A is made with 10 mL C₆H₈O₇ and 50 mL of H₂O. Solution B is made with 20 mL C₆H₈O₇ and 100 mL H₂O. The two solutions have ____ concentrations and the masses of equal volumes of the two solutions would be ____.

• the same; the same

• different; different

• the same; different

• different; the same

Solubility is the amount of ____ that will dissolve in a given amount of ____.

• solvent; solute

• solute; solvent

• solution; saturation

• saturation; solvent

Mr. Bowens's class OG Pugs found that 20 mL of a solute would saturate 50 mL H₂O. 5 mL of the solute has a mass of 6 g. What is the mass of the saturated solution?

• 6 g

• 24 g

• 50 g

• 74 g