Question

Answer all please

What is the mole fraction of I_2 in a solution made by dissolving 55.6 g of I_2 in 245 g of hexane, C_6H_14? (MM I_2 = 253.81 g/mol and MM Hexane = 86.18 g/mol) A) 0.0715 B)0.0770 C) 0.133 D) 0.154 What is the mole fraction of oxygen in a gas mixture that is 3.7g in oxygen (MM O_2 = 32.0 g/mol) and 6.3g in nitrogen (MM N_2 = 28.0 g/mol) by mass? A) 0.34 B) 0.37 C) 0.25 D) 0.52

Answer 1

s3 8) 0.2足 0° 02022 3.7 32 0. 339 3。 3