Question

What is the mole percentage of NaCl in the solution when 13.8g of NaCl is mixed in 123ml of water?​

Answer 1

Answer:1. What is the mole fraction of ethanol in a solution made by dissolving 14.6 g of

ethanol, C2H5OH, in 53.6 g of water?

Ethanol 46 g/mol

Water 18 g/mol

Calculate moles of ethanol: 14.6 grams x 1 mol / 46 grams = 0.317 moles

Calculate moles of water: 53.6 grams x 1 mol / 18 grams = 2.98 moles

Mole fraction = moles of component / total moles in solution

= 0.317 / (0.317 + 2.98) = 0.0963

Explanation: hi