travisyarbrough12 travisyarbrough12
  • 13-03-2020
  • Chemistry
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What mass of potassium would react with excess chlorine to produce 156 G of potassium chloride

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Eduard22sly
Eduard22sly Eduard22sly
  • 13-03-2020

Answer:

81.66g

Explanation:

First, let us write the balanced equation for the reaction. This is illustrated below:

2K + Cl2 —> 2KCl

Molar Mass of K = 39g/mol

Mass of K from the balanced equation = 2 x 39 = 78g

Molar Mass of KCl = 39 + 35.5 = 74.5g/mol

Mass of KCl from the balanced equation = 2 x 74.5 = 149g

From the equation,

78g of K produced 149g of KCl.

Therefore, Xg of K will produce 156g of KCl i.e

Xg of K = (78 x 156)/149 = 81.66g

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