how many moles in 7.48g of CO2 ?
It will take that many moles of O2
d. How many moles of O2 are needed to produce 7.48g of CO2?
2 answers
We need to be careful with problems like this. For example we need to know from what the CO2 is obtained.
In this problem, mols CO2 = 7.48/44 = 0.17
If we assume the CO2 is produced from
C + O2 ==> CO2, then 0.17 mols CO2 will require 0.17 mols O2.
But if the CO2 is produced from CO, then
2CO + O2 ==> 2CO2
0.17 mols CO2 will require 1/2 * 0.17 mols O2.
And if CO2 is produced from some other reaction we can get other answers.
In this problem, mols CO2 = 7.48/44 = 0.17
If we assume the CO2 is produced from
C + O2 ==> CO2, then 0.17 mols CO2 will require 0.17 mols O2.
But if the CO2 is produced from CO, then
2CO + O2 ==> 2CO2
0.17 mols CO2 will require 1/2 * 0.17 mols O2.
And if CO2 is produced from some other reaction we can get other answers.