Question

A chemist mixes 42.3 g of water with 95.2 g of acetone and 75.9 g of 2-nitroethanol.

Calculate the percent by mass of each component of this solution.
Be sure each of your answer entries has the correct number of significant digits. Water, acetone, and 2-nitroethanol

Answer 1

To calculate the percent by mass of each component in the solution, divide the mass of each component by the total mass of the solution and multiply by 100. The percent by mass of water is 19.83%, acetone is 44.63%, and 2-nitroethanol is 35.54%.

Step-by-step explanation:

To calculate the percent by mass of each component in the solution, we need to determine the mass of each component and the total mass of the solution. The percent by mass of a component can be calculated by dividing its mass by the total mass of the solution and multiplying by 100. Let's calculate the mass of each component first:

Mass of water = 42.3 g

Mass of acetone = 95.2 g

Mass of 2-nitroethanol = 75.9 g

Total mass of the solution = 42.3 g + 95.2 g + 75.9 g

= 213.4 g

Now, let's calculate the percent by mass of each component:

Percent by mass of water = (42.3 g / 213.4 g) x 100%

= 19.83%

Percent by mass of acetone = (95.2 g / 213.4 g) x 100%

= 44.63%

Percent by mass of 2-nitroethanol = (75.9 g / 213.4 g) x 100%

= 35.54%