Homework Answers
Answer 10 :-
Let the final temperature be =TºC
Then,
?T=(87.9?T)ºC
Mass of water, m=0.0737kg
Heat lost, H=2.6kJ
specific heat of water, s=4.18kJkg?1ºC?1
Therefore,
H=ms?T
2.6 = 0.0737 * 4.186 * (87.9?T)
87.9 - T = 2.6 / (0.0737 * 4.186)
87.9 - T = 8.43
T = 87.9 - 8.43
T = 79.5 °C
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Please answer both questions to the best of your ability! It
would be GREATLY APPRECIATED.
10:...
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3. Calculate the heat absorbed by 25.0 g of water needed to raise its temperature from 20.0°C to 65.0°C. The specific heat of water is 4.18 J/gºC. Show your work Final Answer 4. Aluminum metal has a specific heat of 0.901 J/gºC. How much heat is transferred to a 6.75 g piece of aluminum initially at room temperature, 20.0°C, when it is placed into boiling water? The temperature of boiling...
3. Calculate the heat absorbed by 25.0 g of water needed to raise its temperature from 20.0°C to 65.0'C. The specif...
3. Calculate the heat absorbed by 25.0 g of water needed to raise its temperature from 20.0°C to 65.0'C. The specific heat of water is 4.18 J/gºC. Show your work Final Answer 4. Aluminum metal has a specific heat of 0.901 J/g C. How much heat is transferred to a 6.75 g piece of aluminum initially at room temperature, 20.0°C, when it is placed into boiling water? The temperature of boiling water is 100°C. Show your work Final Answer 5....
3. Calculate the heat absorbed by 25.0 g of water needed to raise its temperature from...
3. Calculate the heat absorbed by 25.0 g of water needed to raise its temperature from 20.0°C to 65.0°C. The specific heat of water is 4.18 J/gºC. Show your work Final Answer 4. Aluminum metal has a specific heat of 0.901 J/g C. How much heat is transferred to a 6.75 g piece of aluminum initially at room temperature, 20.0°C, when it is placed into boiling water? The temperature of boiling water is 100°C. Show your work Final Answer 5....
Can someone please answer these questions? It would be greatly appreciated 2. On Figure 1, 100g...
Can someone please answer these questions? It would be
greatly appreciated
2. On Figure 1, 100g stainless steel standard (density 8.0 g/cm2) is balanced with 100g water (density 1.0 g/cm in air atmosphere, STP a) Which substance will displace more air? b) Which substance will appear heavier in vacuum? 00.3 0 100.0009 100.000g Figure 1: Buoyancy effect.
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1) An aluminum calorimeter of
mass 58 g, has 155 g water, both at a temperature of 21°C. A 108-g
piece of metal originally kept in boiling water (T = 100°C) is
transferred to the calorimeter. The final equilibrium temperature
of the mixture is 26.6°C. Calculate the specific heat of the metal
(in J/kg). Specific Heats: Al = 900 J/kg, water =4186 J/g
2) How much heat, in kilo-joules, is required to convert 19 g of
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I know the answers but I don't know how to solve the work. Please show the...
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Aluminum has a specific heat of 0.902 J/g.°C. How many joules of heat are required to change the temperature of 8.50 grams of aluminum from 25.0°C to 93.4°C? a. 7.67 J b. 71.7 J c. 192J d. 524 J Water has a specific heat of 4.18 J/g. °C. If 35.0 g of water at...
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please write clearly and use significant figures. thanks in
advance
3. Calculate the heat absorbed by 25.0 g of water needed to raise its temperature from 20.0°C to 65.0°C. The specific heat of water is 4.18 J/gºC. Show your work Final Answer 4. Aluminum metal has a specific heat of 0.901 J/gºC. How much heat is transferred to a 6.75 g piece of aluminum initially at room temperature, 20.0°C, when it is placed into boiling water? The temperature of boiling...
3. Calculate the heat absorbed by 25.0 g of water needed to raise its temperature from 20.0°C to 65.0'C. The specific heat of water is 4.18 J/gºC. Show your work Final Answer 4. Aluminum metal has a specific heat of 0.901 J/g C. How much heat is transferred to a 6.75 g piece of aluminum initially at room temperature, 20.0°C, when it is placed into boiling water? The temperature of boiling water is 100°C. Show your work Final Answer 5....
3. Calculate the heat absorbed by 25.0 g of water needed to raise its temperature from 20.0°C to 65.0°C. The specific heat of water is 4.18 J/gºC. Show your work Final Answer 4. Aluminum metal has a specific heat of 0.901 J/g C. How much heat is transferred to a 6.75 g piece of aluminum initially at room temperature, 20.0°C, when it is placed into boiling water? The temperature of boiling water is 100°C. Show your work Final Answer 5....
Can someone please answer these questions? It would be
greatly appreciated
2. On Figure 1, 100g stainless steel standard (density 8.0 g/cm2) is balanced with 100g water (density 1.0 g/cm in air atmosphere, STP a) Which substance will displace more air? b) Which substance will appear heavier in vacuum? 00.3 0 100.0009 100.000g Figure 1: Buoyancy effect.
1) An aluminum calorimeter of
mass 58 g, has 155 g water, both at a temperature of 21°C. A 108-g
piece of metal originally kept in boiling water (T = 100°C) is
transferred to the calorimeter. The final equilibrium temperature
of the mixture is 26.6°C. Calculate the specific heat of the metal
(in J/kg). Specific Heats: Al = 900 J/kg, water =4186 J/g
2) How much heat, in kilo-joules, is required to convert 19 g of
ice at -13°C into...
please help quick
Which of the following substances form both ions and molecules in solution ? O CH3OH O Li2CO3 O HCIO4 O Sr(OH)2 O H3PO4 The pH of a solution of barium hydroxide is 12.53. How many milliliters of this solution are needed to titrate 125 mL of a solution of 0.0200 M sulfuric acid ? O 148 ml O 165 ml 0 73.8 ml O 36.9 mL 0 7.38 x 104 mL You have the six pieces of...
I know the answers but I don't know how to solve the work.
Please show the work
1.)
Answer: D
2.)
Answer: D
3.)
Answer: A
Aluminum has a specific heat of 0.902 J/g.°C. How many joules of heat are required to change the temperature of 8.50 grams of aluminum from 25.0°C to 93.4°C? a. 7.67 J b. 71.7 J c. 192J d. 524 J Water has a specific heat of 4.18 J/g. °C. If 35.0 g of water at...
please quick help on those two questions
4 pts Question 9 Exactly 1.100 g of CO2(g) was introduced into a 1.00-L flask that already contained some O2 gas. The flask was warmed to 100 °C and the total pressure was found to be 815 mmHg. No chemical reaction occurred between CO2 and O2. Calculate the mass of Oz in the flask. 1.12 g 02 0.160 g 02 0.754 g 02 0.820 g 02 0.321 g 02 2 pts Question 12...
please help me with answering all questions 4-10 thank you
?
Two/three or more component system: practice the algebra! INCLUDE ALL UNITS! 3. A sample of a metal with a mass of 212g is heated to 125.0°C and then dropped into 375g of water at 24.0°C. If the final temperature of the water is 34.2°C, what is the specific heat of the metal? (Hint: treat as 2-component system) 1pt work space: 4 water at 18.3°C. If the temperature of the...
please answer all
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