Question 1
A 1.00 molal solution of NaCl in water contains:
◦ 1.00 g NaCl per 1000.0 g H
2O
◦ 1.00 mol NaCl per 1000.0 g H
2O
◦ 1.00 mol NaCl per 1000.0 kg H
2O
◦ 1000.0 g NaCl per 1000.0 g H
2O
◦ 1.00 mol NaCl per 1000.0 mol H
2O
Question 2
A 1.38 M solution of nitric acid (63. g/mol) in water (18.0 g/mol) has a density of 1.04 g/mL. What is the mole fraction of nitric acid in the solution?
◦ 0.0254
◦ 0.0239
◦ 0.0261
◦ 0.0228
◦ 0.0233