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Chemistry
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ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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If 901 J of heat is available, what is the mass in grams of iron (specific heat = 0.45 J/g・°C) that can be heated from 22.5°C to 120.0°C?
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- If 227.9 Joules of heat are added to 25.96 grams of a liquid, raising the temperature of the liquid from 27°C to 33.8°C, what is the specific heat capacity of the liquid with units of J/g•°C? Report your answer with 3 significant figures.arrow_forwardA 325.7 gram sample of copper is initially at 20.8 °C, and it absorbs 17.88 kJ of heat from its surroundings. What is its final temperature? (specific heat = 0.387 J g¹ °C-1 for copper) Do not put units in your answer. Give your answer to one decimal place.arrow_forwardA 98.3 g piece of copper (specific heat 0.380 J/g・°C) is heated and then placed into 400.0 g of water initially at 20.7°C. The water increases in temperature to 22.2°C. What is the initial temperature (in °C) of the copper? (The specific heat of water is 4.184 J/g・°C).arrow_forward
- If 901 J of heat is available, what is the mass in grams of iron (specific heat = 0.450 J/g・°C) that can be heated from 22.5°C to 120.0°C?arrow_forwardA) An iron nail with a mass of 12 gg absorbs 15 J of heat. If the nail was initially at 30 ∘C, what is its final temperature? Express your answer using two significant figures. B) When 47.1 J of heat is added to 13.8 g of a liquid, its temperature rises by 1.74 ∘C. What is the heat capacity of the liquid?arrow_forwardIf a system has 30.5 J of heat added to it, and the system does 75.5 J of work on its surroundings, what is the change in the internal energy of the system, in J?arrow_forward
- If 501 J of heat is available, what is the mass in grams of iron (specific heat = 0.450 J/g °C) that can be heated from 22.5 °C to 120.0 °C?arrow_forwardThe specific heat of a metal is 3.76cal/g °C. How much heat energy will it take to heat a 25.0g cylinder of metal from 21.5 °C to 77.0°C?arrow_forwardJoules (J) are a measure of energy. Chemists often measure energy in calories (cal). If 1 cal = 4.184 J, how many cal are equivalent to 48.3 J?arrow_forward
- If 391.5 Joules of heat are added to 27.96 grams of a liquid, raising the temperature of the liquid from 29.6°C to 34.0°C, what is the specific heat capacity of the liquid with units of J/g•°C? Report your answer with 3 significant figures.arrow_forwardA 27.5g piece of aluminum sits in a room and cools. It loses 6120.0 J of heat. If the initial temperature of aluminum is 157.3°C, what is the final temperature? The specific heat capacity of aluminum is 0.900 J/g°C.arrow_forward
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