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23-05-2016
Chemistry

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The temperature of a sample of water increases from 20.9°C to 45.5°C as it absorbs 5637 J of heat. What is the mass of the sample?

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Willchemistry Willchemistry

23-05-2016

Q = 5637 J

C =4.814 J/KgºC

Temperature : 45.5ºC - 20.9º C = 24.6ºC

Q = m x C x T

5637 = m x 4.814 x 24.6

5637 = m x 118.4244

m = 5637 / 118.4244

m = 47.60 g

hope this helps!

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