Based upon the following equation: 2 K + 2 HCl - - > 2 KCl + H2 How many moles of K are needed to form 0.3 moles of H2? *

a) 0.15

b) 0.3

c) 0.6

d) 0.9

Question

Chemistry

Justin Shepherd

5 April, 21:07

Based upon the following equation: 2 K + 2 HCl - - > 2 KCl + H2 How many moles of K are needed to form 0.3 moles of H2? *

a) 0.15

b) 0.3

c) 0.6

d) 0.9

+5

Answers (1)

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Jocelyn · Answer 1

From the given balanced chemical reaction it is signified that in every 1 mole of H2 will require 2 moles of K. Using the concept of ratio and proportion, with x being the number of moles of H2,

2/1 = 0.3/x

The value of x from the equation, 0.15 moles.

Based upon the following equation: 2 K + 2 HCl - - > 2 KCl + H2 How many moles of K are needed to form 0.3 moles of H2? *a) 0.15b) 0.3c) 0.6d) 0.9

Based upon the following equation: 2 K + 2 HCl - - > 2 KCl + H2 How many moles of K are needed to form 0.3 moles of H2? *

a) 0.15

b) 0.3

c) 0.6

d) 0.9