Toh Xia Ping's answer to Rosie's Secondary 3 A Maths Singapore question.
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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.
So if question ask for per gram, you got to divide the enthalpy change by the molar mass. Then you can compare from there.
Date Posted:
5 months ago
So do I just divide the right box by the left box of have to find each mole first ?
each gram! cause qn asking for each gram
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