77. Calculate the amount of heat required to heat a 45-kg sample of ethanol from 11.0 °C to 19.0 °C. 79. If 89 J of heat are added to a pure gold coin with a mass of 12 g, what is its temperature change? 81. An iron nail with a mass of 12 g absorbs 15 J of heat. If the nail was initially at 28 °C, what is its final temperature?

Q: How much heat is required to warm 1.50 L of water from 25.0 °C to 100.0 °C? (Assume a density of 1.0…

A:

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 194.0 g sample…

A: Mass of sample = 194 gram Initial temperature = - 8.3℃ Final Temperature , T2 = 4.5 ℃ Change in…

Q: What is the final temperature of a 56 g sample of water if the initial temperature was 4.0°C and it…

A: Given: Mass, m = 56 g Heat, q = 3046 J Specific heat of water, c = 4.184 Initial temperature, Ti =…

Q: A beaker contained 62.09 g of water at 19.6°C. A 86.23-g sample of metal at 75°C was placed in it,…

A: Mass of water = 62.09 g Initial temperature of water = 19.60C Mass of metal = 86.23 g Initial…

Q: An aluminum kettle weighs 1.05 kg.(a) What is the heat capacity of the kettle?(b) How much heat is…

A: Specific heat- It is the amount of heat required to raise the temperature of 1g of substance by 10…

Q: A container filled with 7.81 kg of water underwent a temperature change from 24.19 "C to 28.08 °C.…

A: The amount of heat required to one gram of  substance to raise  the temperature of one degree…

Q: How much heat (in kJ) is needed when 133.43 g of water warms and boils from 33.45°C to 100°C?

A: The mass of the water sample is = 133.43 g The initial temperature of the water is = 33.45oC The…

Q: How much energy would it take to heat a section of the copper tubing that weighs about 725.0 g, form…

A: The mass of the copper tube is = 725.0 g Raise in temperature is = 22.6-15.01 = 7.59oC The heat…

Q: A sample of water with a mass of 23.31 g and an initial temperature of 367.67 K   loses 8615 Joules.…

A:

Q: 5. 5. If 20,000 J of energy are used to heat mercury by 4.00 °C, what is the mass of mercury? 6.…

A: Heat released or absorbed by a substance is calculated as: q = m.C.∆T where m is the mass of the…

Q: In the laboratory a student uses a "coffee cup" calorimeter to determine the specific heat of a…

A: The question is based on the concept of calorimetry. We have to determine specific heat capacity of…

Q: 3. The temperature of a sample of water increases from 20°C to 46.6°C as it absorbs 5650 calories of…

A: (3) Given that -  Initial temperature T1 = 20°C  Final temperature T2 = 46.6°C  Difference in…

Q: The table lists the specific heat values of several substances. Substance Specific heat (cal/g.°C)…

A: Heat energy is given by q = m * C * ΔT where q = heat energy m = mass of the substance C = specific…

Q: How much heat (J) must be added to a 50.0 g sample of zinc if the temperature increases from 20'C to…

A: q = mc∆T  q is the amount of heat energy  m is the mass of substance  c is the specific heat…

Q: Can you help me, im confused on how to do this So can you help me understand it by showing how to…

A:

Q: In the laboratory a student uses a "coffee cup" calorimeter to determine the specific heat of a…

A: Mass of chromium, m1 = 18.5 g Mass of water, m2 = 81.3 g Temperature of chromium, T = 98.04 °C…

Q: What would be the final temperature of 1 gallon of water (3.785 L) if you added 1.218 x 103 kJ of…

A: we need to find the final temperature of water under given conditions

Q: A 217.3 g water bath is heated to 99.7 ˚C from 22.5 ˚C.  How much heat was absorbed by the water, in…

A: Given, mass of water =217.3 g initial temperature, Ti=22.5 °C final temperature, Tf=99.7°C specific…

Q: The specific heat of an unknown metal is calculated to be 3.74J/g*C. What is the mass of the sample…

A: Answer is explained below.

Q: In the laboratory a student finds that it takes 1Joules to increase the temperature of 13.3 grams of…

A:

Q: A 9.1 g piece of aluminum (specific heat= 0.22 cal/(g* Celsius) received 10.0 cal of heat. What was…

A: The change in temperature of an object on receiving certain amount of heat (q) is expressed as:

Q: Determine the mass of a sample of aluminum if losing 5,150 joules of heat causes its temperature to…

A:

Q: 12. An aluminum kettle weighs 1.05 kg.(a) What is the heat capacity of the kettle?(b) How much heat…

A: (a) Given that mass of aluminium kettle =1.05 kg = 1050 g Now, heat capacity is explained as the…

Q: Solve this

A: The heat capacity is the ratio of the energy supplied in the form of heat to the rise in the…

Q: 5. If you hold snow, the snow begins to melt and your hand feel cold. This is because melting snow…

A:

Q: A 25.0 g sample of silver metal was heated to 170 °C and then placed in a calorimeter holding 50.0 g…

A: Given: The initial temperature of Silver = 170oC Initial temperature of water = 20.0oC Final…

Q: 4) You are told that a chemical reaction is exothermic. How could you test whether the statement is…

A:

Q: Suppose you heat a metal object with a mass of 31.8 g to 96.8 °C and transfer it to a calorimeter…

A:

Q: 12. An aluminum kettle weighs 1.05 kg. (a) What is the heat capacity of the kettle? (b) How much…

A:

Q: In the laboratory a student determines the specific heat of a metal. He heats 18.8 grams of aluminum…

A: Given that-Mass of aluminium=18.8 gramsIts initial temperature=98.63°CMass of water=79.1 gramsIts…

Q: In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used…

A: CALCULATION OF SPECIFIC HEAT CAPACITY

Q: 8. A 7.0-gram metal sample absorbed 211 J of heat as it was heated from 28°C to 85°C. W containing…

A:

Q: In the laboratory a student uses a "coffee cup" calorimeter to determine the specific heat of a…

A: Calorimeter: A calorimeter is an instrument used for calorimetry, or the process of measuring the…

Q: Directions: Please complete this worksheet on a separate piece of paper. 1. What is the specific…

A: Given :  1. Mass of aluminum = 28.4 gm   Heat given = 207 J Increase in temperature = 8.1 ° C  2.…

Q: Determine the specific heat capacity of 250.0g of an unknown metal. When the metal absorbs 18.1 kJ…

A: a) Given that: mass of metal = 250.0g initial temperature, Ti = 23.1°C final temperature, Tf =…

Q: In the laboratory a student finds that it takes 62.4 calories to increase the temperature of 15.0…

A: Given :-  Heat absorbed = 62.4 cal  Mass of Mg = 15.0 g  Initial temperature = 20.9 oC  final…

Q: Aluminum has a specific heat of 0.9J/(g °C). How much energy in kJ is needed to raise the…

A: Given, mass of Al block = 625 g  Specific heat, c = 0.9 J/g°C

Q: In the laboratory a student finds that it takes 37.4 calories to increase the temperature of 14.3…

A: The amount of heat requires to increase the temperature of one gram of compound by 1° is called the…

Q: heat, upon which the temperature of the sample increases from 21.5 °

A: Dear student I have given answer to your question in the image format.

Q: heat capacity

A:

Q: In the laboratory a student finds that it takes 14.8 Joules to increase the temperature of 10.6…

A: The specific heat (C) of a compound is mathematically expressed as: C=Qm×∆T…

Q: The table lists the specific heat values of several substances. Substance Specific heat (cal/g. C)…

A: Specific heat capacity: The amount of heat required to increase the temperature of one gram of a…

Q: What is the change in temperature of a 13.6 g sample of water that absorbs 1,524 J of heat?

A: q = mc∆T q is the amount of heat energy absorbed m is the mass of substance  c is the specific heat…

Q: How much heat is needed to raise the temperature of a 2.5 g piece of copper wire from 20. °C to 80.…

A: When the temperature rise of a 1 g of substance takes place by 1°C, some amount of heat is required…

Q: -Calorimetry Questions 1. A 24.6 g sample of nickel is heated to 110.0 °C and then placed in a…

A:

Q: A sample of aluminum absorbs 136 J of energy and the temperature increases from 24.11 °C to 30.41…

A: Heat capacity is the amount of heat required to raise the temperature by one degree Celsius.…

Q: A sample of water with a mass of 764.1g undergoes a temperature change from 41.23 celcius to 20.82…

A: In exothermic reaction, there is release 9f heat energy during reaction.

Q: A sample of 175°C copper is placed into a beaker with 100 grams of 25°C water. Which sample of…

A:

Q: Some homes that use baseboard heating use copper tubing. Hot water runs through and heats the copper…

A: Temperature change (ΔT) taking place is given.

Q: How much energy does it take to heat 15.6 grams of aluminum metal from 25°C to 150.°C? The specific…

A: Mass of Aluminum = 15.6 grams Initial Temperature (Ti) = 25°C Final Temperature (Tf) = 150°C…