Q1- Ice initially at -7.0°C is mixed with 200 g of water that is initially at 45°C. All of the ice melts and the temperature of the final mixture is 15°C. Find the mass of the ice. Useful info: density of water: 1,000 kg/m3, density of ice: 917 kg/m3, specific heat of water: 1.00 cal/(°C•g), specific heat of ice: 0.50 cal/(°C•g), latent heat of fusion of water: 79 cal/g, latent heat of vaporization of water: 540 cal/g

Q2- A metal sample weighing 45.2 g and at a temperature of 100.0°C was placed in 38.6 g of water in a calorimeter at 25.2°C. At equilibrium the temperature of the water and metal was 32.5°C. How much heat flowed into the water?

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