Chem problem!?

In calculating the specific heat of a substance, the following data are used: 92.15g; heat=3200 kcal, rise in T=45 C.. How many significant figures should you report in calculating specific heat?..

pls help me with my homework

Answer:
S=Q/(mT)
=3200x1000/[(92.15/1000)x45]
=3200000/[4.14675]
=771688.67Cal/kg/K
till 2 places of decimals

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