An iron pin (specific heat = 0.473 
) at 110°C is dropped into 50.0 mL of H2O at 15.0°C.After a couple of minutes,the temperature of the water reaches 17.4°C.What was the mass of the iron pin?
A) 44 g
B) 15 g
C) 1.3 g
D) 12 g
Correct Answer:
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