Solution Found!
Calculate each of the following:(a) Mass % of H in
Chapter 3, Problem 17P(choose chapter or problem)
Calculate each of the following:
(a) Mass % of H in ammonium bicarbonate
(b) Mass % of O in sodium dihydrogen phosphate heptahydrate
Questions & Answers
QUESTION: Problem 17P
Calculate each of the following:
(a) Mass % of H in ammonium bicarbonate
(b) Mass % of O in sodium dihydrogen phosphate heptahydrate
ANSWER:
Solution 17P:
Here, we have to calculate the mass percent of each atom in the molecules.
We can calculate the mass % from the following equation
Mass percent of element X = 100%
Step 1:
(a) Mass % of H in ammonium bicarbonate
Here, we are going to calculate the mass % of H in NH4HCO3
The molar mass of NH4HCO3 =79.056 g/mol
Since,
1.0 mole of NH4HCO3 = 5.0 moles of H
The molar mass of H =1.008 g/mol
Therefore, the mass of H in NH4HCO3 = 5.0 moles of H
= 5.04 g of H
Therefore,
Mass percent of element H = 100%
= 100% = 6.375 %
Thus, 6.375 % of H is in ammonium bicarbonate.