Question

What is the percent composition by mass of hydrogen in NH4HCO3 (gram-formula mass = 79 grams/mole)?

Answer 1

Answers: 6.3%

Step-by-step explanation:

Answer 2

Answer:The percent composition by mass of hydrogen in
`NH_4HCO_3` is 6.32 %.

Step-by-step explanation:

Molecular mass of the
`NH_4HCO_3` = 79 g/mol

Mass of the hydrogen atom present in one formula unit of
`NH_4HCO_3`:

`= 5* \text{(atomic mass of hydrogen)}=5* 1 g/mol= 5 g/mol}`

`\text{percentage of hydrogen}=\frac{\text{mass of the hydrogen in}NH_4HCO_3}{\text{molar mass of}NH_4HCO_3}* 100`

`\text{percentage of hydrogen}=(5g/mol)/(79 g/mol)* 100=6.32\%`

The percent composition by mass of hydrogen in
`NH_4HCO_3` is 6.32 %.