Find the percent composition of each element in CaSO4. Be sure to add the % sign and the element. "Ca is the 1st blank "S is the 2nd blank" 'O is the 3rd blank 'GO ONE PLACE PAST THE DECIMAL IN ANSWERS" Example: If you calculated 12.346% element X, you would write your answer as: 12.3% X square square square

## Step1: Determine Molar Mass of CaSO ### Calculate the molar mass of each element in CaSO and sum them to find the total molar mass. Calcium (Ca) has a molar mass of 40.08 g/mol, sulfur (S) is 32.07 g/mol, and oxygen (O) is 16.00 g/mol. Since there are four oxygen atoms, multiply the molar mass of oxygen by 4. The total molar mass of CaSO is g/mol.## Step2: Calculate Percent Composition of Each Element### Use the formula for percent composition: . For calcium: . For sulfur: . For oxygen: .