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(a) In an experiment, you scoop up a handful of sand (SiO2) on a very hot...

(a) In an experiment, you scoop up a handful of sand (SiO2) on a very hot day at the beach. The sand just happens to be 2.00 x 102 g exactly and 96.7°C (ok maybe this is Death Valley). You quickly transferred the sand to 1.25 x 102 g of water at 15.2°C. The final temperature comes to 32.5°C. What is the specific heat capacity of sand (SiO2)? [Cp(water) = 4.18 J/(g·°C)]

(b) A 40.0g piece of gold at 76.2 oC is dropped into 10.0g of water at 20.0 oC. After a short time, both the gold and the water reach a stable temperature of 26.2 oC. Use this information to calculate the specific heat of gold.

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