CHEM 111 Lecture Notes - Nitride, Reagent, Limiting Reagent
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Net reaction example: cl + o3 clo + o2, 2clo cloocl, cloocl 2cl + o2. The total amount of product is called theoretical yield and is unobtainable. Actual yield is what you get from the experiment. Typically, results are given as a percentage of the theoretical yield. Percent yield = actual yield / theoretical yield x 100. You react silver sulfide with excess hydrochloric acid to obtain agcl, using the reaction below. Ag2s (s) + 2hcl (aq) 2agcl (s) + h2s (g: 75. 1, 70. 3, 85. 2, 90. 5% 150 g ag2s x 1 mol ag2s / 247. 87 g ag2s x 2 mol agcl / 1 mol ag2s x 143. 35 g agcl / 1 mol. Every reaction so far has a specified amount of one reactant while everything else is in excess. We calculate amount of produce assuming that all reactant is used up. That reactant limits" the reaction the reaction stops when the reactant is gone.
