Calculate the amount of heat required to raise the temperature of a 54 g sample of water from 5°C to 20.°C.

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E=m*c*(T2-T1)

To calculate the amount of heat required to raise the temperature of a substance, you can use the formula:

Q = m * c * ΔT

Where:
Q = amount of heat (in joules)
m = mass of the substance (in grams)
c = specific heat capacity of the substance (in joules/gram °C)
ΔT = change in temperature (in °C)

In this case, we want to calculate the amount of heat required to raise the temperature of 54 g of water from 5°C to 20°C.

First, we need to find the specific heat capacity of water. The specific heat capacity of water is approximately 4.18 joules/gram°C.

Now, let's substitute the values into the formula:

Q = 54 g * 4.18 J/g°C * (20°C - 5°C)

Q = 54 g * 4.18 J/g°C * 15°C

Q = 3551.4 J

Therefore, the amount of heat required to raise the temperature of a 54 g sample of water from 5°C to 20°C is 3551.4 joules.