Determine the mass percent (to the hundredths place)of H in sodium bicarbonate (NaHCO₃).

Question

Quizplus · Accepted Answer

The formula for sodium bicarbonate is NaHCO3. To find the mass percent of hydrogen (H) in NaHCO3, first calculate the molar mass of NaHCO3: Na (22.99 g/mol) + H (1.01 g/mol) + C (12.01 g/mol) + 3*O (3*16.00 g/mol) = 84.01 g/mol. The mass of hydrogen in the compound is 1.01 g/mol. The mass percent of H = (mass of H / molar mass of NaHCO3) * 100% = (1.01 / 84.01) * 100% ≈ 1.20%.

Determine the Mass Percent (To the Hundredths Place)of H in Sodium