Question

There is 300 grams of water in the 200-gram calorimeter cup
(inner can). Both are at room temperature of 20 degrees Celsius. A
100-gram metal sample with an initial temperature of 90 degrees
Celsius is placed in the calorimeter resulting. The resulting final
temperature of the system is 30 degrees Celsius. If the calorimeter
can has a specific heat of 0.2 cal/g-C degree, determine the
specific heat of the metal sample

Answer #1

PLEASE ANSWER QUESTION 2:
1)A calorimeter has aluminum inner cup of mass 120 gram
containing 100 ml water at temperature 20 degree Celsius. Brass
piece with mass 100 gram is heated to 100 degree Celsius, and then
immersed in the calorimeter. Calculate the final temperature of the
system. The specific heat of brass is 0.09 cal/(gramXdeg.C) . The
additional necessary data are provided in the text.
2)A chunk of 15 gram ice is pulled from a freezer keeping
temperature -20...

Two 50 gram ice cubes are dropped into 200 grams of water in a
class. 1.) if the water was initially at a temperature of 25
degrees C, and if the ice came directly from a freezer operating at
-15 degrees C, what will be the final temperature of the drink? The
specific heat of ice is about 0.50 cal/(gram degree C) in this
temperature range, and the heat required to melt ice to water is
about 80 cal/gram. 2.)...

A calorimeter made of copper (c=0.0923 cal/g-C°) of mass 300 g
contains 450 grams of water. The container is initially at room
temperature, 20°C. A 1 kg block of metal is heated to 100°C and
placed in the water in the calorimeter. The final temperature of
the system is 40°C. What is the specific heat of the metal?
A.
0.159 kcal/kg-C °
B.
0.591 kcal/kg-C°
C.
0.519 kcal/kg-C°
D.
0.915 kcal/kg-C°

200
grams of water at 65 degrees celsius are mixed with 40 grams of ice
at 0 degrees celsius in a 50 gram aluminum calorimeter cup at 25
degrees celsius. What is the final state of the system (all
substances and temperatures?)

A coffee-cup calorimeter initially contains 125 g water at 24.2
degrees celsius. Ammonium Nitrate (10.5 g), also at 24.2 degree
celsius, is added to the water, and after the ammonium nitrate
dissolves, the final temperature is 18.3 degrees celsius.What is
the heat of solution of ammonium nitrate in kj/mol? Assume that the
specific heat capacity of the solution is 4.18 J/Cg and that no
heat is transferred to the surrounds or to the calorimeter.

A 100-gram metal block is initially heated to 100 degrees
Celsius. The copper block is then placed in 200-grams of water at
20 degrees Celsius. The block and the water are allowed to come to
thermal equilibrium and reach a temperature of 23.52 degrees
Celsius. a.) What is the change in temperature of the block and the
water? b.) If the specific heat of water is 4.184 J/g C, what is
the heat gained by the water? c.) What is...

An insulated aluminum calorimeter vessel of 150 g mass contains
300 g of liquid nitrogen boiling at 77 K. A metal block at an
initial temperature of 303 K is dropped into the liquid nitrogen.
It boils away 15.8 g of nitrogen in reaching thermal equilibrium.
The block is then withdrawn from the nitrogen and quickly
transferred to a second insulated copper calorimeter vessel of 200
g mass containing 500 g of water at 30.1 degrees celsius. The block
coolds...

SETUP
In today’s lab we will measure specific heat using a
calorimeter. A calorimeter consist of a small
metal cup inside a larger metal container, with a
lid. The cups are thermally separated from each other by
means of air and a wooden ring, thus reducing the thermal
conduction to a minimum.
To keep track of how much water etc. we have, the whole
calorimeter will be placed on a digital scale. Make sure to zero
the scale before you place...

7. Calorimetry A piece of metal has mass 100 grams and an
initial temperature of 100'C. lt is placed in an insulated
container of mass 200 grams which contains 500 grams of water at an
initial temperature of 17 .3"C. The container is made of the same
material as the metal sample. lf the final temperature is 22.7'C,
what is the specific heat capacity of this metal? How many calories
('1 cal = 4.186 J) are required to warm the...

Suppose you have a calorimeter that contains 100.0 grams of
water at an initial temperature of 25 degrees celsius. A salt (2.19
g, 0.020 moles) is dissolved in the water, and the final
temperature is 29 degrees celsius. Calculate the standard heat of
solution (on a per mole basis). Was the dissolution exothermic or
endothermic?

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