1. Mass of NaOH pellets required to make 1L of 0.01 M NaOH 2. Volume of ethyl acetate required to make 1L of 0.05 M ethyl acetate 3. Volume of ethyl acetate required to make 1L of 0.1 M ethyl acetate The following data is provided by the manufacturers: Sodium hydroxide Molar mass: 40 Ethyl acetate Molar mass: 88.11 Density: 0.9 kg/L

Calcium carbonate, CaCO3, can be obtained in a very pure state. Standard solutions of calcium ion are usually prepared by dissolving calcium carbonate in acid. What mass of CaCO3 should be taken to prepare 500. mL of 0.0200 M calcium ion solution?

An experiment in a general chemistry laboratory calls for a 2.00-M solution of HCl. How many mL of 11.9 M HCl would be required to make 250 mL of 2.00 M HCl?

Lead poisoning has been a hazard for centuries. Some scholars believe that the decline of the Roman Empire can be traced, in part, to high levels of lead in water from containers and pipes, and from wine that was stored in leadglazed containers. If we presume that the typical Roman water supply was saturated with lead carbonate, PbCO3 (Ksp = 7.4 1014), how much lead will a Roman ingest in a year if he or she drinks 1 L/day from the container?