Asked by P
2C(s)+H2(g)+227.4kJ -> C2H2(g) is an endothermic reaction.
If 682.2 kilojoules are absorbed, how many moles of C2H2(g) are produced?
If 682.2 kilojoules are absorbed, how many moles of C2H2(g) are produced?
Answers
Answered by
Anonymous
227.4 kJ per 1 mole C2H2.
682.2 kJ x (1 mol C2H2/227.4 kJ) = ??
Note how kJ in the numerator cancels with kJ in the denominator which gets rid of the unit we don't want and converts to the unit (mole C2H2) which we want to keep. Check my work.
682.2 kJ x (1 mol C2H2/227.4 kJ) = ??
Note how kJ in the numerator cancels with kJ in the denominator which gets rid of the unit we don't want and converts to the unit (mole C2H2) which we want to keep. Check my work.
Answered by
drwls
Each mole of C2H2 formed absorbs 227.4 kJ
Divide 682.2 kJ by 227.4 kJ/mol
to get the answer
Divide 682.2 kJ by 227.4 kJ/mol
to get the answer
Answered by
Steve
THe answer is 3
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