3. Calculate the mass of Fe in 30g of FeCl; 4. Calculate the number of molecules present in 81g of H2O?
5. One mole of CaCl2 weigh how much grams?
6. Calculate the mass of sodium sulfate made when 100 g of sodium hydroxide reacts with excess sulfuric acid. (Ar of H=1. Ar of O = 16. Ar of Na= 23. Ar of S = 32) H2SO4 + 2NaOH Na SO + 2H2O 7. One mole of H. SO, weigh how much grams?
8. How many grams of NaOH will react if 3 moles of sodium hydroxide react completely to form sodium sulfate? (A. of H= 1, A, of O = 16, A, of Na = 23, A, of S = 32) H2SO4 + 2NaOH Na SO: 2H2O 9. Calculate the mass of magnesium chloride made when 96 g of magnesium reacts with excess hydrochloric acid. (As of H = 1, As of Cl = 35.5. Ar of Mg = 24) Mg (3) + 2HCl (24) MgCl2(aq) H2(g)

Estructura 7.2 completar repaso 1 - ¿lógico o ilógico? 1 - ¿lógico o ilógico? listen and indicate whether each question and response is lógico or ilógico.

You mix the pks of succinic acid are 4.21 and 5.64. how many gramsa graduate student at sdsu wants to measure the activity of a particular enzyme at ph 4.0. to buffer her reaction, she will use a buffer system based on one of the acids listed below, which acid is most appropriate for the experiment? of monosodium succinate (fw = 140 g/mol) and disodium succinate (fw = 162 g/mol) must be added to 1 l of water to produce a solution with a ph 5.28 and a total solute concentration of 100 mm? (assume the total volume remains 1 liter, answer in grams monosodium succinate, grams disodium succinate, respectively.) volumes of 0.05 m nah2po4 and 0.05 m na2hpo4 (pk's for phosphoric acid are 2.15, 6.82 and 12.38). which of the following best describes the resulting solution?

Why is silver chloride is an ionic compound