Question

7. In a chemistry class, Gabby prepared a solution by mixing 25 g of sugar in 80
g of water. What are the concentrations of the solute and solvent in percent
(%) by mass?
A Solute: 34% Solvent: 60%
B. Solute: 14%, Solvent: 86%
C. Solute: 24%, Solvent: 76%
D. Solute: 44%, Solvent: 56%​

Answer 1

Answer:

The per cent will be solute 24 percent and solvent 76percent .. I hope its correct

Answer 2

Given: In a chemistry class, Gabby prepared a solution by mixing 25 g of sugar in 80 g of water.

To find: Concentration of solute and solvent in percent by mass

Solution: The solution is prepared where sugar is the solute and water is the solvent.

Mass of sugar = 25 g

Mass of water = 80 g

Mass of solution

= Mass of solute+ Mass of solvent

= 25+80 g

= 105 g

Mass % of solute is given by formula:

(Mass of solute / Mass of solution ) × 100

= (25/105) × 100

= 0.238 × 100

= 23.8%

which is approximately equal to 24%.

Mass % of solvent is given by formula:

(Mass of solvent / Mass of solution ) × 100

= (80/105) × 100

= 0.76 × 100

= 76%

Therefore, the concentration of solute and solvent in percent by mass is option (c) Solute: 24% , Solvent= 76%.