Molar Mass worksheet

1. Molar mass of C8H1O7: 209.09 g/mol

1. Carbon (C): 8 atoms × its atomic weight

   $8\times 12.011\text{\hspace{0.17em}g/mol}$$=96.088\text{\hspace{0.17em}g/mol}$

2. Hydrogen (H): 1 atom × its atomic weight

   $1\times 1.008\text{\hspace{0.17em}g/mol}$$=1.008\text{\hspace{0.17em}g/mol}$

3. Oxygen (O): 7 atoms × its atomic weight

   $7\times 15.999\text{\hspace{0.17em}g/mol}$$=111.993\text{\hspace{0.17em}g/mol}$

4. Add up what every element contributes to get the molar mass

   $96.088+1.008+111.993$$=209.089\text{\hspace{0.17em}g/mol}$

2. Molar mass of C12H24O4: 232.32 g/mol

1. Carbon (C): 12 atoms × its atomic weight

   $12\times 12.011\text{\hspace{0.17em}g/mol}$$=144.132\text{\hspace{0.17em}g/mol}$

2. Hydrogen (H): 24 atoms × its atomic weight

   $24\times 1.008\text{\hspace{0.17em}g/mol}$$=24.192\text{\hspace{0.17em}g/mol}$

3. Oxygen (O): 4 atoms × its atomic weight

   $4\times 15.999\text{\hspace{0.17em}g/mol}$$=63.996\text{\hspace{0.17em}g/mol}$

4. Add up what every element contributes to get the molar mass

   $144.132+24.192+63.996$$=232.32\text{\hspace{0.17em}g/mol}$

3. Molar mass of C8H18O6: 210.23 g/mol

1. Carbon (C): 8 atoms × its atomic weight

   $8\times 12.011\text{\hspace{0.17em}g/mol}$$=96.088\text{\hspace{0.17em}g/mol}$

2. Hydrogen (H): 18 atoms × its atomic weight

   $18\times 1.008\text{\hspace{0.17em}g/mol}$$=18.144\text{\hspace{0.17em}g/mol}$

3. Oxygen (O): 6 atoms × its atomic weight

   $6\times 15.999\text{\hspace{0.17em}g/mol}$$=95.994\text{\hspace{0.17em}g/mol}$

4. Add up what every element contributes to get the molar mass

   $96.088+18.144+95.994$$=210.226\text{\hspace{0.17em}g/mol}$

4. Molar mass of C12H11O6: 251.21 g/mol

1. Carbon (C): 12 atoms × its atomic weight

   $12\times 12.011\text{\hspace{0.17em}g/mol}$$=144.132\text{\hspace{0.17em}g/mol}$

2. Hydrogen (H): 11 atoms × its atomic weight

   $11\times 1.008\text{\hspace{0.17em}g/mol}$$=11.088\text{\hspace{0.17em}g/mol}$

3. Oxygen (O): 6 atoms × its atomic weight

   $6\times 15.999\text{\hspace{0.17em}g/mol}$$=95.994\text{\hspace{0.17em}g/mol}$

4. Add up what every element contributes to get the molar mass

   $144.132+11.088+95.994$$=251.214\text{\hspace{0.17em}g/mol}$

5. Molar mass of C2H10O3: 82.1 g/mol

1. Carbon (C): 2 atoms × its atomic weight

   $2\times 12.011\text{\hspace{0.17em}g/mol}$$=24.022\text{\hspace{0.17em}g/mol}$

2. Hydrogen (H): 10 atoms × its atomic weight

   $10\times 1.008\text{\hspace{0.17em}g/mol}$$=10.08\text{\hspace{0.17em}g/mol}$

3. Oxygen (O): 3 atoms × its atomic weight

   $3\times 15.999\text{\hspace{0.17em}g/mol}$$=47.997\text{\hspace{0.17em}g/mol}$

4. Add up what every element contributes to get the molar mass

   $24.022+10.08+47.997$$=82.099\text{\hspace{0.17em}g/mol}$

6. Molar mass of C2H12O1: 52.12 g/mol

1. Carbon (C): 2 atoms × its atomic weight

   $2\times 12.011\text{\hspace{0.17em}g/mol}$$=24.022\text{\hspace{0.17em}g/mol}$

2. Hydrogen (H): 12 atoms × its atomic weight

   $12\times 1.008\text{\hspace{0.17em}g/mol}$$=12.096\text{\hspace{0.17em}g/mol}$

3. Oxygen (O): 1 atom × its atomic weight

   $1\times 15.999\text{\hspace{0.17em}g/mol}$$=15.999\text{\hspace{0.17em}g/mol}$

4. Add up what every element contributes to get the molar mass

   $24.022+12.096+15.999$$=52.117\text{\hspace{0.17em}g/mol}$

7. Molar mass of C5H19O4: 143.2 g/mol

1. Carbon (C): 5 atoms × its atomic weight

   $5\times 12.011\text{\hspace{0.17em}g/mol}$$=60.055\text{\hspace{0.17em}g/mol}$

2. Hydrogen (H): 19 atoms × its atomic weight

   $19\times 1.008\text{\hspace{0.17em}g/mol}$$=19.152\text{\hspace{0.17em}g/mol}$

3. Oxygen (O): 4 atoms × its atomic weight

   $4\times 15.999\text{\hspace{0.17em}g/mol}$$=63.996\text{\hspace{0.17em}g/mol}$

4. Add up what every element contributes to get the molar mass

   $60.055+19.152+63.996$$=143.203\text{\hspace{0.17em}g/mol}$

8. Molar mass of C3H2O6: 134.04 g/mol

1. Carbon (C): 3 atoms × its atomic weight

   $3\times 12.011\text{\hspace{0.17em}g/mol}$$=36.033\text{\hspace{0.17em}g/mol}$

2. Hydrogen (H): 2 atoms × its atomic weight

   $2\times 1.008\text{\hspace{0.17em}g/mol}$$=2.016\text{\hspace{0.17em}g/mol}$

3. Oxygen (O): 6 atoms × its atomic weight

   $6\times 15.999\text{\hspace{0.17em}g/mol}$$=95.994\text{\hspace{0.17em}g/mol}$

4. Add up what every element contributes to get the molar mass

   $36.033+2.016+95.994$$=134.043\text{\hspace{0.17em}g/mol}$

9. Molar mass of C8H20O4: 180.24 g/mol

1. Carbon (C): 8 atoms × its atomic weight

   $8\times 12.011\text{\hspace{0.17em}g/mol}$$=96.088\text{\hspace{0.17em}g/mol}$

2. Hydrogen (H): 20 atoms × its atomic weight

   $20\times 1.008\text{\hspace{0.17em}g/mol}$$=20.16\text{\hspace{0.17em}g/mol}$

3. Oxygen (O): 4 atoms × its atomic weight

   $4\times 15.999\text{\hspace{0.17em}g/mol}$$=63.996\text{\hspace{0.17em}g/mol}$

4. Add up what every element contributes to get the molar mass

   $96.088+20.16+63.996$$=180.244\text{\hspace{0.17em}g/mol}$

10. Molar mass of C3H16O7: 164.15 g/mol

1. Carbon (C): 3 atoms × its atomic weight

   $3\times 12.011\text{\hspace{0.17em}g/mol}$$=36.033\text{\hspace{0.17em}g/mol}$

2. Hydrogen (H): 16 atoms × its atomic weight

   $16\times 1.008\text{\hspace{0.17em}g/mol}$$=16.128\text{\hspace{0.17em}g/mol}$

3. Oxygen (O): 7 atoms × its atomic weight

   $7\times 15.999\text{\hspace{0.17em}g/mol}$$=111.993\text{\hspace{0.17em}g/mol}$

4. Add up what every element contributes to get the molar mass

   $36.033+16.128+111.993$$=164.154\text{\hspace{0.17em}g/mol}$