Balance the following chemical equation:
___FeBr_3+___H_2 SO_4⟶___Fe_2 (SO_4 )_3+___HBr
2. Balance the following chemical equation:
___C_7 H_16+___O_2⟶___CO_2+___H_2 O
3. What is the formula weight (in amu) for ammonia, NH3?
1. 2FeBr3 + 3H2SO4 ⟶ Fe2(SO4)3 + 6HBr
2. C7H16 + 11O2 ⟶ 7CO2 + 8H2O
3. The formula weight of ammonia (NH3) is calculated as follows:
- The atomic mass of nitrogen (N) is 14.01 amu.
- The atomic mass of hydrogen (H) is 1.01 amu.
- NH3 contains 1 nitrogen atom and 3 hydrogen atoms.
- Therefore, the formula weight of NH3 is: (1 * 14.01 amu) + (3 * 1.01 amu) = 17.03 amu.