Molar mass of h2co3

Total molar mass for hydrogen atoms

Total mass for carbon atoms

Total molar mass for oxygen atoms

Hydrogen percent composition

Oxygen percent composition

1. molar mass of h2co3: 62.03 g

2. total molar mass for hydrogen atoms: 2.02 g

3. total molar mass for carbon atoms: 12.01 g

4. total molar mass for oxygen atoms: 48.00 g

5. hydrogen percent composition: 3.3%

6. oxygen percent composition: 77.4%

Explanation:

1. 1.01+1.01+12.01+16.00+16.00+16.00 = 62.03

2. 1.01*2 = 2.02

3. 12.01*1 = 12.01

4. 16.00*3 = 48.00

5. (2.02/62.03) * 100 = 3.3%

6. (48.00/62.03) * 100 = 77.4%