Calculate the mass fraction and mole fraction of ethyl alcohol and water in a solution containing 9.2g of alcohol in 18.0g of water .
Answers
Answered by
3
a) Mass fraction of ethanol =
mass of ethanol
mass of ethanol +mass of water
= = 0. 3382
9.2
27.2
Mass fraction of water =
mass of water
mass of ethanol +mass of water
= = 0. 6618
18
27.2
b) Moles of ethanol = = = 0. 2
weight of ethanol
molar mas of ethanol
9.2
46
Moles of water = = = 1
weight of water
molar mas of water
18
18
Mole fraction of ethanol = = = 0. 1667
moles of ethanol
moles of ethanol +moles of water
0.2
1.2
Mole fraction of water = = = 0. 8333
Answered by
0
Answer:
mass fraction= 0.34,mole fraction = 0.17 mass fraction of h2o =0.66
Similar questions