Question

Please help with each one

2. (20 pts.) Calculate the specific heat of a piece of metal if its mass is 25.52 grams and the metal gives off 1551 Joules of heat when cooled to 20 °C from an initial temperature of 85 °C. c.) 0.440J d.) 0.940 J c.) d.) 0.450 g 0.940 J/g °C . (15 pt.) From your Question #5 result, identify the metal using the following table: Metal ΑΙ Fe Hg Bi Cu Pb Specific Heat (in J/g °C) 0.90 0.45 0.14 0.13 0.39 0.13 Metal identification: a.) Al b.) Fe c.) d.) Cu Pb -- (25 pts.) A 12.48g sample of a metal is heated to 99.0 °C and was plunged into 50.0 g of 25.0 °C water. The temperature Of the water rose to 28.1 °C. Assuming no loss of energy to the surroundings, what is the specific heat of the metal? a.) 7.33 g b.) 0.733 J/g °C c.) d.) 0.733J 7.33 J . (25 pts.) If you bite into a tasty Pop-Tart which has just come out of the toaster, which will be hotter: the crust or the filling? WHY? (Use a concept we discussed to support your answer). a.) The crust will be hotter because it's made of flour c.) b.) The crust will be burned and the filling cold d.) both the crust and filling will be the same temperature the filling will be hotter because it contains more water USEFUL INFORMATION q-(mass)(specific heat)(AT) 00+ 273.15- K Specific heat of water: 4.184 J/g °C