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 student heats 60.93 grams of gold to 98.87 °C and then drops it
into a cup containing 79.68 grams of water at 24.46 °C. She
measures the final temperature to be 26.11 °C.

The heat capacity of the calorimeter (sometimes referred to as the
calorimeter constant) was determined in a separate experiment to be
1.54 J/°C.

Assuming that no heat is lost to the surroundings calculate the
specific heat of gold.

Specific Heat (Au) = _______J/g°C.

Answer #1

**Let us denote H2O by symbol 1, gold by symbol 2 and
calorimeter by symbol 3**

**m1 = 79.68 g**

**T1 = 24.46 oC**

**C1 = 4.18 J/goC**

**m2 = 60.93 g**

**T2 = 98.87 oC**

**C2 = to be calculated**

**T = 26.11 J/goC**

**C3 = 1.54 J/g**

**we have below equation to be used:**

**heat lost by 2 = heat gained by 1 and 3**

**m2*C2*(T2-T) = m1*C1*(T-T1) + C3*(T-T1)**

**60.93*C2*(98.87-26.11) = 79.68*4.18*(26.11-24.46) +
1.54*(26.11-24.46)**

**4433.2668*C2 = 549.553 + 2.541**

**C2= 0.1245 J/goC**

**Answer: 0.125 J/goC**

**Feel free to comment below if you have any doubts or if
this answer do not work**

In the laboratory a "coffee cup" calorimeter, or constant
pressure calorimeter, is frequently used to determine the specific
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water at 20.02 °C. The heat capacity of the calorimeter (sometimes
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separate experiment to be 1.56...

two parts for one 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. 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
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...

In the laboratory a
"coffee cup" calorimeter, or constant
pressure calorimeter, is frequently used to determine the specific
heat capacity of a solid, or to measure the enthalpy 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...

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determine the specific heat of a metal.
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She measures the final temperature to be
23.20°C.
Assuming that all of the heat is transferred to the water, she
calculates the specific heat of tungsten to
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She heats 19.3 grams of chromium
to 98.47°C and then drops it into a cup containing
81.8 grams of water at 23.17°C.
She measures the final temperature to be
24.97°C.
Assuming that all of the heat is transferred to the water, she
calculates the specific heat of chromium to be
__________________ J/g°C.
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Cs2SO4(s) are dissolved in
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