1. Find the molar mass of ammonium bicarbonate:
* N: 14.01 g/mol
* H: 1.01 g/mol (x 5) = 5.05 g/mol
* C: 12.01 g/mol
* O: 16.00 g/mol (x 3) = 48.00 g/mol
Total molar mass = 14.01 + 5.05 + 12.01 + 48.00 = 79.07 g/mol
2. Calculate the mass of hydrogen in one mole of ammonium bicarbonate:
* Mass of H = 5.05 g/mol
3. Calculate the mass percent of hydrogen:
* Mass percent of H = (mass of H / molar mass of NH₄HCO₃) x 100%
* Mass percent of H = (5.05 g/mol / 79.07 g/mol) x 100%
* Mass percent of H = 6.39%
Therefore, the mass percent of hydrogen in ammonium bicarbonate is approximately 6.39%.