Question

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 chunk of zinc weighing 18.01 grams and originally at 98.77 °C is dropped into an insulated cup containing 83.17 grams of water at 20.02 °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. Using the accepted value for the specific heat of zinc (See the References tool), calculate the final temperature of the water. Assume that no heat is lost to the surroundings.

** T_{final}** = °C
?

Answer #1

Heat lose of Zn = Heat gain of water

mcT = mcT

18.01*1.56*(98.77-t) = 83.17*4.184*(t-20.02)

t =
25.9^{0}C

The fonal temperature is 25.9^{0}C

two parts for one question
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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...

In the laboratory a "coffee cup" calorimeter, or constant
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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...

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"coffee cup" calorimeter, or constant
pressure calorimeter, is frequently used to determine the specific
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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...

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In the laboratory a student uses a "coffee cup" calorimeter to
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She heats 19.5 grams of tungsten
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I recently did a lab where we used a Styrofoam coffee
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