Question

Directions: Calculate the percent composition of each element in the following

compounds.
1) sodium phosphate, Na,PO,?
2) hydrogen peroxide, H₂O₂?
3) carbon dioxide, CO₂?
4) calcium sulfate dihydrate, CaSO, 2H₂O?
5) glucose, C₂H₁₂O₂?
6) aspirin, C,H,O,?
PLEASE SHOW WORK

Answer 1

1. 42.1% sodium, 18.9% phosphorus and 39% oxygen.

2.94.07 percent oxygen and 5.93 percent hydrogen.

3.72.71 percent oxygen and 27.29 percent carbon.

4.CaSO4•2H2O has an accepted value of 20.9%.

5.40.00 percent C,6.73 precent H, 53.28 precent O.

6. 60.0% carbon and 35.5% Oxygen.

Step-by-step explanation:

you find it by dividing the molar mass of the element times the number of that element over the molar mass of the compound then times by 100