Chemistry, 03.03.2020 17:29, IIHarmonyII
1. 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. A student heats 65.21 grams of nickel to 97.63 °C and then drops it into a cup containing 78.98 grams of water at 20.92 °C. She measures the final temperature to be 26.88 °C. The heat capacity of the calorimeter (sometimes referred to as the calorimeter constant) was determined in a separate experiment to be 1.56 J/°C. Assuming that no heat is lost to the surroundings calculate the specific heat of nickel. Specific Heat (Ni) =? J/g°C. 2. 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. Since the cup itself can absorb energy, a separate experiment is needed to determine the heat capacity of the calorimeter. This is known as calibrating the calorimeter, and the value determined is called the calorimeter constant. One way to do this is to use a common metal of known heat capacity. In the laboratory, a student heats 97.32 g of iron to 98.75 degree C and then drops it into a cup containing 82.94 g of water at 21.06 degree C. She measures the final temperature to be 29.62 degrees C. Using the accepted value for the specific heat of iron, calculate the calorimeter constant.
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Chemistry, 22.06.2019 12:00, kayla32213
Under normal conditions, describe how increasing the temperatures effects the solubility of a typical salt
Answers: 1
1. In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently use...
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