contestada

what is the mole fraction of h2s in the gas mixture of gases made up of 7.0 g of H2S, 10.0 g of CH4 and 12.0 g of O2

Respuesta :

first find out the mole of h2s=1×2+32
=34
34÷7
=4.85
This way do the rest and divide with 100