Calculate the amount of heat needed to boil 133.g of ethanol ( CH3CH2OH ), beginning from a temperature of −45.7°C . Be sure your answer has a unit symbol and the correct number of significant digits.

Calculate the amount of heat needed to boil 177. g of octane (CH₁g), beginning from a temperature of 105.0 °C. Round your answer to 3 significant digits. Also, be sure your answer contains a unit symbol. 0 X

Calculate the amount of heat needed to boil 115. g of acetic acid (HCH,CO,), beginning from a temperature of 33.9 °C. Round your answer to 3 significant digits. Also, be sure your answer contains a unit symbol. x10

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Calculate the amount of heat needed to boil 45.3 g of methanol (CH3OH), beginning from a temperature of -26.4 °C. Be sure your answer has a unit symbol and the correct number of significant digits. 0

Calculate the amount of heat needed to boil 23.1g of octane (C8H18), beginning from a temperature of 97.0°C. Round your answer to 3 significant digits. Also, be sure your answer contains a unit symbol.

Calculate the amount of heat needed to boil 108. g of octane (C,H13), beginning from a temperature of - 52.6 °C. Round your answer to 3 significant digits. Also, be sure your answer contains a unit symbol.

14.0 g of cream at 20.3 °C are added to an insulated cup containing 100.0 g of coffee at 78.8 °C. Calculate the equilibrium temperature of the coffee. You may assume no heat is lost to the cup or surroundings, and that any physical properties of cream and coffee you need are the same as those of water. Be sure your answer has 3 significant digits. [°C x10 X S

Calculate the amount of heat needed to boil 182. g of benzene (CH), beginning from a temperature of 64.6 °C. Round your answer to 3 significant digits. Also, be sure your answer contains a unit symbol. 0 x10 X

Calculate the amount of heat needed to boil 157. g of benzene (CH), beginning from a temperature of 19.0 °C. Be sure your answer has a unit symbol and the correct number of significant digits.