Chemistry, 19.05.2020 02:18 chasityn5648
A 0.674 M cobalt(II) chloride (CoCl2) solution is prepared with a total volume of 0.0750 L. The molecular
weight of CoCl2 is 128.9
g/mol. What mass of CoCl2 (in grams) is needed for the solution?
Answers: 3
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If 34.2 grams of lithium react with excess water, how many liters of hydrogen gas can be produced at 299 kelvin and 1.21 atmospheres? 2 li (s) + 2 h2o (l) yields 2 lioh (aq) + h2 (g)
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You are attempting to recrystallize a crude product mixture. you add the appropriate amount of hot solvent and are allowing the solution to slowly cool to room temperature. however, at room temperature no crystals have appeared, which of the following methods should be used to induce crystallization? choose all correct answers. a) place the flask in an ice bath. b) swirl the contents of the flask. c) add a small seed crystal of the desired product. d) scratch the inside of the glassware using a stir rod. it can be multiple choices
Answers: 3
A 0.674 M cobalt(II) chloride (CoCl2) solution is prepared with a total volume of 0.0750 L. The mole...
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