Calculating Heat

Answer the following question! 1. A sample of water is heated from 10.oC to 15oC by the addition of 130 joules of heat. What is the mass of the water? 2. How many calories of heat are required to raise the temperature of 550 g of water from 12.0 oC to 18.0 oC? (remember the specific heat of water is 1.00 cal/g oC) 3. How much heat is lost when a 640 g piece of copper cools from 375 oC, to 25 oC? (The specific heat of copper is 0.38452 J/kg oC) 4. The specific heat of iron is 0.4494 J/kg oC. How much heat is transferred when a 24.7 kg iron is cooled from 100 oC to 25 oC? 5. Amri is heating water on the stove to boil eggs for a picnic. How much heat is required to raise the temperature of his 10.0 kg pot of water from 20.0°C to 100.°C?