When 514 J of heat is added to a sample of liquid water, the temperature rises f

Question

When 514 J of heat is added to a sample of liquid water, the temperature rises from 31.6°C to 55.3°C. Knowing the specific heat capacity of liquid water is 4.184 J/g • K, how many grams of water are in the sample?

I have tried 5.183g and .414g, both were wrong. Please Help! Thanks! Update: Found the answer! It is 5.18(correct Sig figs)

09 Question (1 point) a See page 228 ,3rd attempt see Periodic Table QSee Hint when 514 J of heat is added to a sample of liquid water, the temperature rises from 31.6 C to 55.3 C. Knowing the specific heat capacity of liquid water is 4.184 J/g K, how many grams of water are in the sample?

Explanation / Answer

Q = 514 J

c = 4.184 J/g.oC

Ti = 31.6 oC

Tf = 55.3 oC

use:

Q = m*C*(Tf-Ti)

514 = m*4.184*(55.3-31.6)

m = 5.18 g

Number of significant figure should be 3

Answer: 5.18 g

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