A solution is made using 200.0 mL of methanol (density 0.792 g/mL) and 985.1 mL of water (density 1.000 g/mL). What is the mass percent of the methanol

The mass percent of methanol in solution is 13.85 %

Explanation:

To calculate the mass of water, we use the equation:

Density of water = 1.000 g/mL

Volume of water = 985.1 mL

Putting values in above equation, we get:

Density of methanol = 0.792 g/mL

Volume of methanol = 200.0 mL

Putting values in above equation, we get:

To calculate the mass percent of methanol, we use the equation:

Mass of solution = [158.4 + 985.1] g = 1143.5 g

Mass of methanol = 158.4 g

Putting values in above equation, we get:

Hence, the mass percent of methanol in solution is 13.85 %

it should have an internal chamber and two thermometers sticking out of the top. the internal chamber will also be closed off from the outside.