Question 9

Calculate the number of moles and the mass of the solute in the following solution:

2.00 L of 18.5 M H2S04, concentrated sulfuric acid

Question 10

What volume of a 1.00-M Fe(NO33 solution can be diluted to prepare 1.00 L of a solution with a concentration of 0.250 M?

Question 10 options:

Question 11

If 0.1718 L of a 0.3556-M C3H7OH solution is diluted to a concentration of 0.1222

M, what is the volume of the resulting solution?

Question 11 options:

Question 12

The level of mercury in a stream was suspected to be above the minimum considered safe (1 part per billion by weight).

An analysis indicated that the concentration was 0.68 parts per billion. Assume a density of 1.0 g/mL and calculate the molarity of mercury in the stream.

Question 12 options:

Question 13

What are the mole fractions of

H3PO4 and water in a solution of 14.5 g of

H3PO4 in 125 g of water?

1) Mole fraction of H3P04

2) Mole fraction of water