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Q.

When 1L of CO2 is heated with graphite, the volume of the gases collected is 1.5 L. Calculate the number of moles of CO produced at STP.

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a

122.4

b

2822.4

c

111.2

d

1422.4

answer is C.

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Detailed Solution

CO2+C⟶2CO

  1                  0

(1-x)+2x = 1.5 or 1+x = 1.5 ⇒x = 0.5

Moles of 1 L CO at STP = 2×0.522.4= 122.4    

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When 1L of CO2 is heated with graphite, the volume of the gases collected is 1.5 L. Calculate the number of moles of CO produced at STP.