
Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Calculate the joules to heat 78g of water from 22°C to 62°C.
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- how many joules of heat are required to heat 25.0 g of ethyl alcohol from The prevailing room temperature 22.5°C to its boiling point 78.5°Carrow_forwardHow much heat, in kJ, would be needed to raise the temperature of 500.0 g of water from 14.5 ºC to a final temperature of 100.0 ºC? The specific heat of water is 4.184 J/gºCarrow_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_forward
- 12 ounces of water are heated during the preparation of a cup of coffee. 1150 J of heat are added to the water, which is initially at 20 °C. What is the final temperature of the coffee?arrow_forwardA 25.0 mL sample of Benzene at 19.9 degrees celcius was cooled to its melting point, 5.5 degrees celcius and then frozen. How much energy was given off as heat in this process?arrow_forwardThe specific heat for iron is 0.444 J/g oC. How much heat energy does it take to cool 107.1 g of iron from 14.3 oC to 99.7 oC?arrow_forward
- Calculate the amount of heat released when a 225g sample of gold cools from 86.0C to 32.5C. The specific heat of gold is 0.129 J/gC.arrow_forwardHow many grams of water would require 2,247 joules of heat to raise its temperature from 36.86 °C to 100°C?arrow_forwardThe specific heat capacity of liquid water is 4.18 J/g-K. How many joules of heat are needed to raise the temperature of 5.00 g of water from 20.0 degrees Celsius to 44.1 degrees Celsius?arrow_forward
- If 3.00 kJ of heat is supplied to a 0.880 mol sample of solid copper at 25.0°C, what will the copper’s final temperature be in °C? (The specific heat of solid copper is 0.385 J/g • K.)arrow_forwardHow much heat is required to warm a 4.1 lb Pyrex baking dish from 22 degrees C to 191 degrees C?arrow_forwardA 18g sample of a material absorbed 898 calories, raising the temperature of the anitmony from 33 degrees C to its melting point (389 degrees C). Calculate the specific heat (cal/g degrees C) of this material.arrow_forward
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