WAEC - Chemistry (2019 - No. 13)
What is the percentage by mass of H in CH\(_3\)COOH ?
1.7%
5.0%
6.7%
7.1%
Vysvětlení
- molecular mass (or molar mass) is 60.05 g/mol
- with 4 atoms of hydrogen present
( 4 / 60 ) X 100
≈6.7%
- molecular mass (or molar mass) is 60.05 g/mol
- with 4 atoms of hydrogen present
( 4 / 60 ) X 100
≈6.7%