The mass of the sample is 84.3 g
<u>Explanation:</u>
We have the formula to find the mass
Q = mCΔT
where
Q denotes the energy absorbed or released
m denotes the mass of the sample
C denotes the Specific heat of sample
Δ
T denotes the
Temperature change
Q = mCΔT
Rewrite the equation as,
m
=
Q/
C
Δ
T
m=24000 J/4.186 J/g°C×
( 69.5 °C-0°C)
m=82.42
m=84.3 (based on the options)
The mass of the sample is 84.3 g
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