Do I minus or is it mole conc

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secondary 3 | A Maths
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secondary 3 A Maths Singapore

Do I minus or is it mole conc

Date Posted: 4 months ago

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it’s mole calculation, but with enthalpy change, so enthalpy change given is basically amount of energy given out per mole of substance.

So if question ask for per gram, you got to divide the enthalpy change by the molar mass. Then you can compare from there.

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Date Posted: 4 months ago

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Rosie

4 months ago

So do I just divide the right box by the left box of have to find each mole first ?

Toh Xia Ping

4 months ago

each gram! cause qn asking for each gram

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Rosie

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