Question

Solve the following problems. Show your solution.

What is the mass percent of rubbing alcohol in a solution that is made by dissolving 275 g of rubbing
alcohol in 225 g of water?

Answer 1

To find the mass percent of rubbing alcohol in the solution, we can divide the mass of rubbing alcohol by the total mass of the solution and multiply by 100.

Step-by-step explanation:

To find the mass percent of rubbing alcohol in the solution, we first need to determine the total mass of the solution. The total mass of the solution is the sum of the mass of rubbing alcohol and the mass of water.

Given that the mass of rubbing alcohol is 275 g and the mass of water is 225 g, the total mass of the solution is 275 g + 225 g = 500 g.

Next, we need to calculate the mass percent of rubbing alcohol. Mass percent is calculated by dividing the mass of rubbing alcohol by the total mass of the solution and multiplying by 100.

Mass percent of rubbing alcohol = (mass of rubbing alcohol / total mass of solution) * 100 = (275 g / 500 g) * 100 = 55%.