DeterA. Determine the number of formula units present in this 0.56 g sample of Sodium Carbonate. mine the number of oxygen atoms present in the sample. Station B: A. In front of you are 2.9x1022 formula units of Sodium Chloride. Calculate the mass of the sample. B. What is the total number of moles of ions in the sample? Station C: Congratulations! You have passed Gr. 12 Chemistry and are now taking Post-Secondary Chemistry. You have also taken on the responsibility of being a lab tech for the year. A teacher asks you to prepare a 0.2 mol/L solution of Lead (II) Nitrate. This means that a 1 L solution needs to contain 0.2 moles of Lead (II) Nitrate. How many grams of Lead (II) Nitrate salt need to be added to 1 Litre of water to prepare the solution? Station D: Determine the molar masses of each of the following: A. Potassium Nitrate B. Ammonium Carbonate C.Magnesium Chloride D.Mercuric Oxide E. Chromium (III) Iodide F. Carbon Tetrachloride Station E: Approximate the number of M&Ms in a full 500 mL beaker. Station F: Determine the number of copper atoms in the sample in front of you.