How much heat must be added to a 2.22 g piece of gold (specific heat = 0.129 J/g × K) to raise its temperature from 25.00 ° C to 34.00 ° C?

Question

Quizplus · Accepted Answer

The formula for calculating the heat (q) needed to change the temperature of a substance is:

q = m * c * deltaT

Where 
m = mass of the substance (in grams)
c = specific heat of the substance (in J/g*K)
deltaT = change in temperature (in K or C)

Substituting the given values, we get:

q = 2.22 g * 0.129 J/g*K * (34.00°C - 25.00°C)
q = 2.58 J

Therefore, the correct answer is choice C, 2.58 J.

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