The mass % of H in methane (CH4) is ?
How would i solve this?
(mass 4H/mass CH4)*100 =
To find the mass percentage of hydrogen (H) in methane (CH4), you will need to calculate the mass of hydrogen in one mole of methane and then express it as a percentage. Here's how you can solve this:
1. Find the molar mass of methane (CH4):
- Carbon (C) has a molar mass of 12.01 g/mol
- Hydrogen (H) has a molar mass of 1.01 g/mol
So, the molar mass of methane = (12.01 g/mol) + 4 × (1.01 g/mol) = 16.05 g/mol.
2. Determine the mass of hydrogen in one mole of methane:
Since there are four hydrogen atoms in one molecule of methane (CH4), the mass of hydrogen in one mole of methane = 4 × (1.01 g/mol) = 4.04 g.
3. Calculate the mass percentage of hydrogen in methane:
Mass percentage of hydrogen = (mass of hydrogen / molar mass of methane) × 100
= (4.04 g / 16.05 g/mol) × 100
= 25.2%
Therefore, the mass percentage of hydrogen in methane is 25.2%.