One mole of dissolved particles depresses the freezing point of 1,000 g of water by 1.86C. At standard pressure, what will the freezing point of a solution be if it contains 1,000 g of water and:
a. 1 mol of glucose (C6H12O6)?
b. 1 mol of BaCl2(aq)?
c. 2 mol of methanol (CH3OH)?
d. 3 mol of glycerol (C3H6O3)?
e. 2 mol of CuSO4(aq)?
f. 4 mol of sucrose (C12H22O11)?
g. 3 mol of KNO3(aq)?
h. 2 mol of salt (NaCl)?
i. 150 g of KHCO3(aq)?
j. 180 g of glucose (C6H12O6)?

For a research project, a student decided to test the effect of the lead(ii) ion (pb2+) on the ability of salmon eggs to hatch. this ion was obtainable from the water‐soluble salt, lead(ii) nitrate, which the student decided to make by the following reaction. pbo(s) + 2 hno3(aq) → pb(no3)2(aq) + h2o losses of product for various reasons were expected, and a yield of 86.0% was expected. in order to have 5.00 g of product at this yield, how many grams of pbo should be reacted? (assume that sufficient nitric acid, hno3, would be used.)