Calculate each of the following quantities:
(a) volume of 14.7 M sulfuric acid that must be added to water to prepare 2.00 L of a 0.271 M solution
(b) molarity of the solution obtained by diluting 75.7 mL of 0.231 M ammonium chloride to 0.250 L
(c) volume of water added to 0.150 L of 0.0252 M sodium hydroxide to obtain a 0.0100 M solution (assume the volumes are additive at these low concentrations)
(d) mass of calcium nitrate in each milliliter of a solution prepared by diluting 56.5 mL of 0.726 M calcium nitrate to a final volume of 0.100 L
I am completely hopeless with these problems. :-[ I keep trying different things, and nothing seems to come out in the right units. Please help me!