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4. Given the following equation:  2 K + Cl2  --> 2 KCl

How many grams of KCl are produced from 2.50 g of K?

 

I've been trying but I just can't understand how to solve this. Very sorry.

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 Nov 8, 2018
 #1
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Each two mole of K  used results in two mole of KCl....

 

K  mole wt 39.0983 gm/mole

      2.5 gm  is   2.5 gm/ 39.0983 gm/mole = .063955 mole of K

 

This will produce the same number of moles of KCl

KCl mole weight = 39.0983 + 35.45  gm = 74.5483 gm

 

.063955 mole  x   74.5483 gm/mole  = 4.768 gm of KCl

 Nov 8, 2018
 #2
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Thank you so much! I apologize for asking but I've been having a difficult time. I appreciate your help. Have a fantastic day/night!!

Guest Nov 8, 2018
 #3
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Good luck.....I hope it is getting clearer!  cheeky

ElectricPavlov  Nov 8, 2018

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