A chemist carefully measures the amount of heat needed to raise the temperature of a 0.34 kg sample of C,H¸O from -1.5 °C to 18.1 °C. The experiment shows that 1.09 × 10* J of heat are needed. What can the chemist report for the molar heat capacity of CHO? Round your answer to 2 significant digits. -1 J.mol •K

Q: A sample of aluminum metal absorbs 9.86 J of heat, upon which the temperature of the sample…

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Q: A 216.9 g sample of sodium absorbs 800.2 joules of heat. The specific heat capacity of sodium is…

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Q: When a solid dissolves in water, heat may be evolved or absorbed. The heat of dissolution…

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Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 182.0 mg sample…

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Q: A sample of aluminum metal absorbs 9.86 J of heat, upon which the temperature of the sample…

A:

Q: A 124.5 g sample of an unknown metal absorbs 1276.25 J of heat, upon which the temperature of the…

A: Given: The mass of the metal sample = 124.5 g The amount of heat absorbed by the metal = 1276.25 J…

Q: A 25.0-mL sample of benzene at 20.4 °C was cooled to its melting point, 5.5 °C, and then frozen. How…

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Q: solid dissolves in water, heat may be evolved or absorbed. The heat of dissolution (dissolving) can…

A: The heat of a system remains…

Q: a. If 1410 J of heat are applied to a 100g piece of metal pipe and the temperature of the pipe rises…

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Q: When a solid dissolves in water, hest may be evolved or absorbed. The heat of dissolution…

A: Since you have posted multiple questions, the answer for first question is given below. Kindly…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 576.0 mg sample…

A: Given that, for a 576.0 mg of pure substance, 10.1 J of heat is required to raise the temperature…

Q: The temperature of the cooling water as it leaves the hot engine of an automobile is 240 °F. After…

A: Given information:

Q: If 1495 J of heat is needed to raise the temperature of a 317 g sample of a metal from 55.0°C to…

A: The specific heat capacity is given as,

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 281.0 mg sample…

A:

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 1.54 kg sample…

A: q = amount of heat required to raise the temperature = 19.6kJ = 19600J Initial temperature = Ti =…

Q: When a solid dissolves in water, heat may be evolved or absorbed. The heat of dissolution…

A:

Q: If 1495 J of heat is needed to raise the temperature of a 333 g sample of a metal from 55.0°C to…

A:

Q: A gas does 135 J of work while expanding and, at the same time, absorbs 156 J of heat. What is its…

A: Given :-  heat absorbed by system = 156 J  work done by gas = 135 J To calculate :- ∆U(in J)

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 236.0 mg sample…

A: We know that q = mc∆T ....(1)  q = heat required = 3.7 J, ∆T = increase in temperature = 11.6 °C…

Q: Substance Specific Heat Capacity (in J/g x °C) Iron 0.449 Aluminum 0.897 Lead 0.129 4. Using the…

A: Given : Initial temperature of substance = 20 oC Final temperature of substance = 30 oC And equal…

Q: The quality of industrial diamonds is determined in part by measuring the specific heat capacity,…

A: Mass of sample M = 2.06 g  Heat absorbed Q = 27.64 J  Change in temperature dT = 74.17 oC - 25.90 oC…

Q: An experiment was conducted to determine the specific heat of platinum.  It was determined that…

A: Heat required to raise the temperature = 158.8 Joules. Mass of a sample = 50.0 g  Initial…

Q: A system receives 825 J of heat and delivers 825 J of work to its surroundings. What is the change…

A: Given:Heat received by system, dQ = 825Jwork done by system, dW=825Jchange in internal energy, dU…

Q: When a solid dissolves in water, heat may be evolved or absorbed. The heat of dissolution…

A: given , WCaBr2    = 1.72 g  M CaBr2 =   200g/mol nCaBr2   = 1.72g/200g/mol ) WH2O  =  107.30 g…

Q: When a solid dissolves in water, heat may be evolved or absorbed. The heat of dissolution…

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Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 1.36 kg sample…

A: Given: Mass of sampleC4H6O2=1.36 kg T1=48.6οC T2=61.7οC Q=2.79×104 J To find: Molar heat capacity…

Q: What can the chemist report for the specific heat capacity of the substance?

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Q: If a system has 38.5 J of heat added to it, and the system does 75.5 J of work on its surroundings,…

A: According to the first law of thermodynamics,change in internal energy i.e∆U can be calculated by…

Q: 8. If you add a metal piece with a temperature of 120 °C and a mass of 1.23 g to 100 g of 30 °C…

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Q: Consider the combustion of propane: С3Н: (9) + 50:(9) -> ЗСО2(9) + 4Н-0() ДН — —2221 kJ A balloon is…

A: Since the heat required = 1.5 X 108 J Assuming y grams of propane is com-busted hence moles of…

Q: If 171.4 grams of water must be heated from 8.00°C to 85.0 °C to make a cup of tea, how much heat…

A: The solution is as follows :

Q: A 15.0-mL sample of benzene at 21.0 °C was cooled to its melting point, 5.5 °C, and then frozen. How…

A: Calculate the mass of benzene from density,

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 0.19 kg sample…

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Q: A18 kg block of iron at 29 °C is rapidly heated by a torch such that 11 kJ is transferred to it.…

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Q: 1. When 145.6 J of heat are added to 13.0 g of mercury in a thermometer, the temperature increases…

A: Here we have to determine specific heat of  mercury if 13 g of Hg absorbed 145.6 J heat energy so…

Q: A student heats 84.17 mL of water to 95.27°C using a hot plate. The heated water is added to a…

A: Answer: Heat capacity of calorimeter is 304.5 J/°C.

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 794.0 g sample…

A:

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 1.76 kg sample…

A: To find molar heat capacity.

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 614.0 mg sample…

A:

Q: 4. A sample of aluminum metal absorbs 9.86 J of heat, upon which the temperature of the sample…

A: Please find your solution below :

Q: If 1495 J of heat is needed to raise the temperature of a 357 g sample of a metal from 55.0°C to…

A:

Q: An experiment was conducted to determine the specific heat of platinum.  It was determined that…

A: We have to calculate the specific heat (J/g°C) of platinum.

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 0.43 kg sample…

A: Given, mass of sample C4H11N, m = 0.43 kg Moles  0f C4H11N = 0.43 ×103 g73 g/mol change in…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 0.88 kg sample…

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Q: Consider the combustion of propane: C3 Hs (g) + 502(g) → 3CO2(g) + 4H2O(1) AH = -2221 kJ A balloon…

A: It is given that heat transfer process is 60.0 % efficient. So, 1.6×108 Joules of energy is actually…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 833.0 mg sample…

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Q: 5. A system compresses when 457 J of work was done on it at the same time it decreases it energy to…

A: Given,  A system 457 J of work done when it compresses, at the same time it decreases energy to 234…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 1.65kg sample…

A: Molar Heat Capacity: The molar heat capacity of a chemical substance is the amount of energy that…

Q: The heat capacity of an object depends on its mass and its composition. The heat capacity of one…

A: Specific heat is the amount of heat required to produce a change of 10C in exactly 1 g of substance.…

Q: If 91 J of heat is added to a pure gold coin with a mass of 15 g , what is the temperature change?…

A: