Introducing chemical reactions

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Question 8
Medium

Copper(II) oxide can be reduced to copper by reaction with carbon monoxide:

CuO+CO→Cu+CO2\text{CuO} + \text{CO} \rightarrow \text{Cu} + \text{CO}_2CuO+CO→Cu+CO2​

A reaction mixture contains 6.36 g6.36\text{ g}6.36 g of copper(II) oxide and 5.60 g5.60\text{ g}5.60 g of carbon monoxide.

5.08 g5.08\text{ g}5.08 g of copper and 3.52 g3.52\text{ g}3.52 g of carbon dioxide are made.

Calculate the number of moles of each substance to determine the limiting reactant in this reaction.

Explain your choice.

The relative atomic mass of Cu\text{Cu}Cu is 63.563.563.5, of C\text{C}C is 121212, and of O\text{O}O is 161616.

  • Number of moles of CuO=……………………………………………………\text{CuO} = \dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dotsCuO=……………………………………………………
  • Number of moles of CO=……………………………………………………\text{CO} = \dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dotsCO=……………………………………………………
  • Number of moles of Cu=……………………………………………………\text{Cu} = \dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dotsCu=……………………………………………………
  • Number of moles of CO2=……………………………………………………\text{CO}_2 = \dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dotsCO2​=……………………………………………………

The limiting reactant is ………………………………\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots……………………………… because ……………………………………………………………………………………………………\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots\dots……………………………………………………………………………………………………

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Introducing chemical reactions Questions

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