9 and 10

When 3.0kg of water is warmed from 10C to 80C, how much heat (q) is needed? Round to two significant figures. Hint: Cs of water =4.184gCJ 0.88kJ8.8105kJ880kJ Question 10 A calorimeter contains 100g of water at 39.8C. An 8.23g metal object (whose temperature is 50.0C ) is placed inside the calorimeter. When equilibrium has been reached, the new temperature of the water and the metal is 40.0C. What type of metal is the object made from? Hints: (1) Cs of water =4.184g.CJ, (2) solve for the specific heat capacity of the unknown metal, and (3) use the table of Specific Heat Canacity of Common. Substances to identify the metal. Al(s) Mn(s) Pb(s) Mg(s)