The specific heat of toluene (C7H8), is 1.13 J/g.K. How many joules of heat are needed to raise the temperature of 62.0 g of toluene from 16.3 °C to 38.8 °C? (2 decimal places in joules)

Q: How much heat in joules is required to heat a 28.4 -g(1-oz) ice cube from -23.0 to -1.0°c? Has the…

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Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 129.0 mg sample…

A: Mass of sample = m = 129 mg = 0.129 g Initial temperature = T1 = - 9.6°C Final temperature = T2 =…

Q: A sample substance weighing 2.85 grams displaces 15 Ml of water with an initial temperature of…

A: We will solve this question using calorimeter calculations.

Q: heat in kJ

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Q: 86. When 2.8 J of heat are added to 5.6 g of an unknown metal, its temperature rises by 3.9 °C. Are…

A: The heat added to a system 'Q' to raise the temperature is determined using following formula: Q=m×…

Q: How many grams of copper can be cooled from 69.0 to 25.5 °C by the heat gained by 100.0 g of water…

A: Thermological equation isQ = m * c * Delta (T) where "m" is mass amount "c" is specific heat"Delta…

Q: How many joules of heat are required to raise the temperature of 174g of gold from 22°C to 85°C? The…

A: The amount of heat absorbed (or released) by fixed amount of a substance to change its temperature…

Q: How much energy must be removed from 13.7 grams of gaseous neon in order to decrease the temperature…

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Q: What is the specific heat of a piece of metal (in J/g°C) if 55.00 g of the metal releases 272 J of…

A: Q = m . s . (T1 - T2) Where, Q = heat released in J m = Mass of metal in g s = specific heat of…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 333.0 g sample…

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Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 1.87 kg sample…

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Q: 1. How much heat is needed to raise the temperature of 1000 g of metal from 0°C to 10°C if the…

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Q: How much heat, in joules and in calories, is required to heat a 28.4-g (1-oz) ice cube from −23.0 °C…

A: Given : Mass of ice cube = 28.4 g Initial temperature of ice cube = -23.0 oC And final temperature…

Q: A hot 1 kg chunk of copper is allowed to cool to 100 °C. If the copper gave off 231 kJ of energy,…

A: Given, The mass of copper (Cu) = 1 Kg = 1000 g Q (heat energy) = - 231 kJ = -231 x 103 J. Final…

Q: repair crews to weld rails together. -) Ⓡ 2Fe(s) + Al2O3(s) DH rxn= -850 kJ -n, in grams, is formed…

A: Exothermic process is the one in which energy is liberated from the system to the surrounding in the…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 196.0 g sample…

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Q: 500.0 g of acetone is heated from –100.0 °C to 60 °C. How much heat (in kJ to two decimal places) is…

A: Given,  Mass of acetone, m = 500 g = 0.5 kg  Change in temperature, ∆T = 60-(-100) = 160 °C Cp for…

Q: Calculate the energy, in joules, to heat a cube of gold with a volume in of 12.0cm^3 from 15 Celsius…

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Q: How many joules of heat are required to heat 125 g aluminum from 19.0°C to 95.5°C?

A: Specific heat: It is defined as the heat required the raise the temperature of 1g of a substance by…

Q: heat in kJ

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Q: The temperature of a 15.9 g sample of gold increases from 22.1 degrees Celsius to 30.6 degrees…

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Q: A 250.0 g sample of methanol is heated from 0 °C to 40 °C. How much heat (in kJ to two decimal…

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Q: The specific heat of a certain type of metal is 0.128 J/(g. C). What is the final temperature if 305…

A: The specific heat of the metal is = 0.128 J/(g.oC) The amount of heat added is = 305 J The initial…

Q: A 125g piece of metal is heated to 288celcius and dropped into 85.0 g of water at 12.0 Celsius. The…

A: Given,Mass of metal = 125 gTemperature = 288 oCMass of water = 85.0 gTemperature = 12 oCFinal…

Q: It takes 475 J to heat 25 grams of a metal from 25 °C to 75 °C. What is the specific heat? J/g "C

A: Answer

Q: When 435 J of heat is added to 3.4 g of olive oil at 21 o C, the temperature increases to 85 o C.…

A: Given: q=435 J of heat absorbed by the substance.m=3.4g of olive oil To Solve: Specific heat…

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

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: Copper wires used to transport electrical current heat up because of the resistance in the wire. If…

A: Explanation Heat capacity Multiplying the mass of a specific substance with its heat capacity and…

Q: A 39 g aluminum spoon (specific heat 0.904 J/g-°C) at 25°C is placed in 178 mL (177 g) of coffee at…

A: A definite quantity of heat is used up in raising temperature of substances. For substance that…

Q: A 22.4 g piece of an unknown metal loses 672 J of energy when it cools from 95.3°C to 28.5°C. What…

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Q: 4. A hot 1.00 kg chunk of copper is allowed to cool to 100.0°C. If the copper gave off 231 kJ of…

A: Given,  Mass of Copper = 1.00 Kg Final temperature = 100.0°C  Specific heat = 0.385 J/g°C  Initial…

Q: A 125-g piece of metal is heated to 288 °C and dropped into 85.0 g of water at 12.0 °C. The metal…

A: Using the given statement that dropping hot metal into water with given data we conclude that heat…

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

A:

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: 3. A 6.22-kg piece of copper metal is heated from 20.5 °C to 324.3 °C. Calculate the heat absorbed…

A: 3) mass of copper = 6.22 kg  initial temperature = 20.5 C  Final temperature = 324.3 C  4) mass of…

Q: 1. How much heat (in joules) must be used to raise the temperature of 185 g of water from 15 °C to…

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Q: The specific heat of a certain type of metal is 0.128 J/(g-°C). What is the final temperature if 305…

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Q: A total of 665.19 Joules of heat are observed as 49.79g of lead is heated from 12.0°C to 78.12°C.…

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Q: 19] How many joules of heat are required to heat 155 grams of water from 15.0*C to 99.0*C ? C =…

A: The ratio of the quantity of heat energy delivered to an item to the ensuing increase in temperature…

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

A: Given: The mass of iron taken = 19.7 g The initial temperature of iron = 99.34 ∘C The mass of water…

Q: In one box of nails, there are 75 iron nails weighing 0.280 lblb . The density of iron is 7.86…

A: Given: Mass of 75 iron nails = 0.280 lb. Specific heat of iron = 0.452 J/g.oC. Since 1 lb = 453.6 g.…

Q: A 125 g piece of metal is heated to 288°C and dropped into 85 g of water at 12°C. The metal and…

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Q: An 80.0 g sample of metal, initially at 96.0°C, is placed into 150. g of water initially at 26.0°C…

A: The unknown metal is initially at a higher temperature, so it will lose heat on being dropped into…

Q: 1,922 Joules of heat are added to 42.5 grams of water, initially at 20∘C. What is the final…

A: The final temperature is given below

Q: The specific heat of aluminum is 0.900 j/g*C, how many joules of energy are required to raise the…

A: Given, mass of Al (m) =20.0 gspecific heat of Al (c) =0.900 Jg.°Cinitial temperature T1 =10.0…

Q: The specific heat of a certain type of metal is 0.128 JNg."C). What is the final temperature if 305…

A: In this question, we want to determine the final temperature when amount of heat is added to a…

Q: A 125.0 g sample of metal at 85.0°C is placed in 165.0 g of water at 18.0 °C.  The temperature of…

A: Metal is at higher temperature and water is at lower temperature. Metal transfers the heat to water…

Q: A 30.0g piece of metal is heated to 95.0 °C. The metal is then placed into 45.0 grams of water at…

A: When the heated metal is dipped in water, then heat lost by metal goes to water. Mass of metal= 30 g…

Q: A glass contains 250.0 g of warm water at 78.0°C. A 50.0 g piece of gold at 2.30°C is placed in the…

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