Caleb V.

asked • 07/02/21

finding moles chemistry

How many moles of KCl are produced from 10.8 grams of K?

2K + Cl2 → 2KCl

1 Expert Answer

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Anthony T. answered • 07/02/21

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2K + Cl2 → 2KCl


Create a conversion factor: 2 moles KCl / 2 x mol. mass of K = 2 / 2 x 39.098 = 0.0256 .


Multiply the conversion factor by 10.8 g K. 0.0256 moles KCl /gK x 10.8 gK = 0.276 moles KCl produced.


Note that gK cancel out leaving only moles KCl as expected.

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