A 45.9 g sample of a metal is heated to 95.2 C and then placed in a calorimeter

Question

A 45.9 g sample of a metal is heated to 95.2 C and then placed in a calorimeter containing 120.0 g of water (c=4.18 J/g C) at 21.6 C. The final temperature of water is 24.5 C. Which metal was used? (Please show work) a) c= 0.89 b) c= 0.45 c) c= 0.20 d) c= 0.14 A 45.9 g sample of a metal is heated to 95.2 C and then placed in a calorimeter containing 120.0 g of water (c=4.18 J/g C) at 21.6 C. The final temperature of water is 24.5 C. Which metal was used? (Please show work) a) c= 0.89 b) c= 0.45 c) c= 0.20 d) c= 0.14 a) c= 0.89 b) c= 0.45 c) c= 0.20 d) c= 0.14

Explanation / Answer

The heat given by metal = The heat gained by water

(45.9 g)(c)(95.2-24.5)C = (120 g )(4.18 J/g.C)((24.5-21.6) C

After simlifying it -

                 c = 0.45 J/g C

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