What is the mass percent of potassium sulfate in solution if 78g of potassium sulfate is dissolved in 500 mL of water? (The density of water is 1.00 g/mL)

13.5 %

Explanation:

First we calculate the mass of 500 mL of water, using its density:

Then we calculate the mass percent of potassium sulfate, using the formula:

Mass of Potassium Sulfate / Total Mass * 100%

you gotta add the following molecules so we can give u an answer

explanation: