A 10 g mixture of ethane and ethene was passed through bromine water, and the mass of the solution increased by 5.6 g. Determine the mass of ethane in the mixture.
- 4.4 g
- 5.6 g
- 5.0 g
- 6.4 g
📝 Detailed explanation
Ethene reacts with Br₂: C₂H₄ + Br₂ → C₂H₄Br₂.The mass increase is exactly the mass of the ethene.
Mass ethene = 5.6 g.
Mass ethane = 10 - 5.6 = 4.4 g.