Part A: A solution was prepared by dissolving 145.0 g of KCl in 235 g of water. Calculate the mole fraction of KCl . (Th
Posted: Mon Jul 11, 2022 1:37 pm
Part A: A solution was prepared by dissolving 145.0 g of KCl in235 g of water. Calculate the mole fraction of KCl . (The formulaweight of KCl is 74.6 g/mol . The formula weight of water is 18.0g/mol .) Express the mole fraction of KCl to two decimalplaces.
Part B: A solution was prepared by dissolving145.0 gg of KClKCl in 235 gg ofwater. Calculate the molality of KClKCl. (The formulaweight of KClKCl is 74.6 g/molg/mol. The formulaweight of water is 18.0 g/molg/mol.) Express theconcentration of KClKCl in molality to two decimalplaces.
Choices:
0.12 mol/kg
0.13 mol/kg
8.27 mol/kg
0.01 mol/kg
Part B: A solution was prepared by dissolving145.0 gg of KClKCl in 235 gg ofwater. Calculate the molality of KClKCl. (The formulaweight of KClKCl is 74.6 g/molg/mol. The formulaweight of water is 18.0 g/molg/mol.) Express theconcentration of KClKCl in molality to two decimalplaces.
Choices:
0.12 mol/kg
0.13 mol/kg
8.27 mol/kg
0.01 mol/kg