Respuesta :
The percent yield of lithium chloride if a reaction starts with 20.0 g lithium hydroxide and yields 6.00 g lithium chloride is 16.9%
Percentage yield:
- percent yield = actual yield / theoretical yield × 100%
Therefore, let's find theoretical yield.
- LiOH + KCl → LiCl + KOH
Therefore,
LiOH = 23.95 gram per mol
LiCl = 42.394 grams per mol
Therefore,
23.95 g of LiOH gives 42.394 g of LiCl
20 g of LiOH gives ?
cross multiply
theoretical mass of LiCl = 20 × 42.394 / 23.95 = 35.4020876827 grams
Therefore,
percent yield = 6 / 35.4 × 100 = 600/ 35.4 %
percent yield of LiCl = 16.9491525424 %
percent yield of LiCl = 16.9 %
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