A solution is prepared by mixing 22 g ethylene glycol [C₂H₄(OH)₂] with 108 g of water. What is the mass percent of ethylene glycol in the solution?

Question

Quizplus · Accepted Answer

To calculate mass percent, we need to divide the mass of ethylene glycol by the total mass of the solution and then multiply by 100.

mass of ethylene glycol = 22 g
mass of water = 108 g
total mass of solution = 22 g + 108 g = 130 g

mass percent of ethylene glycol = (22 g / 130 g) x 100% = 16.92%, which can be rounded to 17%.

Therefore, the answer is B, 17%.

A Solution Is Prepared by Mixing 22 G Ethylene Glycol