Volume of cool water (mL) Volume of hot water (mL) Initial temperature of cool water (°C) Initial temperature of hot water (°C) Final temperature of water in calorimeter (°C) Temperature change for cool water (°C) Temperature change for calorimeter (°C) Temperature change for hot water (°C) Heat change for cool water Heat change for hot water (J) Heat change for calorimeter (J) Heat capacity of calorimeter (J/°C) Trial 1 50.0 47.5 24.3 38.9 37.0 Trial 2 50.0 46.1 24.9 35.0 33.7 Trial 3 50.0 44.8 23.3 33.8 30.8

Thermometer In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used to determine the specific heat of a solid, or to measure the energy of a solution phase reaction. Stiring md A student heats 63.29 grams of nickel to 97.88 °C and then drops it into a cup containing 76.34 grams of water at 21.12 °C. She measures the final temperature to be 27.55 °C. The heat capacity of the calorimeter (sometimes referred to as the calorimeter constant) was determined in a separate experiment to be 1.60 J/°C. Water Assuming that no heat is lost to the surroundings calculate the specific heat of nickel. Metal- sample at Specific Heat (Ni) = J/g°C. 2003 Thomwan-drookaCole ot pt Submit Answer Try Another Version 3 item attempts remaining Previous Next Save and Exit nt Cengage Learning | Cengage Technical Support MacBook Pro

125.0 g of an unknown substance is heated to 97.0 C. It is then placed in a calorimeter than contains 250g of water with an initial temperature of 20.0 C. The final temperature reached by the calorimeter is 23.5 C. What is the specific heat of the unknown substance? The specific heat of water is 4.18 J/ ( C g). 0.285 J/ ( C g) 0.398 J/ ( C g) 0.729 J/ ( C g) 1.24 J/ ( C g)

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