Question 1
0.25 mol of a nonvolatile, nonionic solute dissolved in 300 g of water (
Kf = 1.86 °C
m-1) will lower the freezing point how many degrees?
◦ 0.65 °C
◦ 2.2 °C
◦ 0.14 °C
◦ 1.6 °C
◦ 3.2 °C
Question 2
100 mL of LiNO
3(aq), 0.241 M is mixed with 240 mL of 0.618 M Ca(NO
3)
2(aq). What is the final concentration of NO
3-(aq) in the solution?
◦ 0.508 M
◦ 1.01 M
◦ 0.943 M
◦ 0.756 M
◦ 1.38 M