2nd attempt Feedback See Periodic Table See Hint When 516 J of heat is added to

Question

2nd attempt Feedback See Periodic Table See Hint When 516 J of heat is added to a sample of liquid water, the temperature rises from 31.8 to 57.4. Knowing the specific heat capacity of liquid wateris4, 184 J/g·K, how many grams of water are in the sample? x 10-3g 4.82 1st attempt il see Periodic Table See Hint Feedback When 516 J of heat is added to a sample of liquid water, the temperature rises from 31.8°C to 57.4°C. Knowing the specific heat capacity of liquid water is 4184 J/g·K, how many grams of water are in the sample? 4.817

Explanation / Answer

1)

Q = 516 J

c = 4.184 J/g.oC

Ti = 31.8 oC

Tf = 57.4 oC

use:

Q = m*C*(Tf-Ti)

516.0 = m*4.184*(57.4-31.8)

m = 4.82 g

just enter 4.82 g

Answer: 4.82 g

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