Can someone help me with this chemistry enthalpy question please??? Watch

Brodiemcm2003
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1) Excess iron was added to 100cm3 of 1.0 mol-1 copper(II) sulfate solution releasing 3.1 kJ of energy.

Fe(s)+CuSO4(aq) --> Cu(s)+FeSO4(aq)

What is the enthalpy change, in kJ mol-1 for the above reaction?

A. -0.31
B. -3.1
C. -31
D. -310
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BobbJo
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(Original post by Brodiemcm2003)
1) Excess iron was added to 100cm3 of 1.0 mol-1 copper(II) sulfate solution releasing 3.1 kJ of energy.

Fe(s)+CuSO4(aq) --> Cu(s)+FeSO4(aq)

What is the enthalpy change, in kJ mol-1 for the above reaction?

A. -0.31
B. -3.1
C. -31
D. -310
0.1 mol of CuSO4 reacted
so ans C
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Brodiemcm2003
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(Original post by BobbJo)
0.1 mol of CuSO4 reacted
so ans C
So is it a case of moving the decimal place in the 3.1 because its 1.0???
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BobbJo
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(Original post by Brodiemcm2003)
So is it a case of moving the decimal place in the 3.1 because its 1.0???
0.1 mol gives 3.1kJ
so enthalpy change in kJ/mol is ...?
answer C
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Brodiemcm2003
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(Original post by BobbJo)
0.1 mol gives 3.1kJ
so enthalpy change in kJ/mol is ...?
answer C
Righty, tysm
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