How many moles of C6H12 (cyclohexane) must be reacted according to the following balanced chemical reaction to transfer -419.1 kJ of heat? ADD FACTOR -46.57 g CO₂ C6H12(1) + 9 1.164 x 106 32.00 mol CO₂ 9.351 0.1069 g 0₂ O2(g)- -> 6 ΔΗ = -3919.4 6 KJ CO₂(g) + g C6H12 kJ ANSWER -419.1 6.022 x 1023 84.16 6 g H₂O mol C6H12 9 H₂O(g) RESET 2 6.439 x 1022 mol O₂ -3919.4 mol H₂O 1 J

How many moles of C6H12 (cyclohexane) must be reacted according to the following balanced chemical reaction to transfer -419.1 kJ of heat? ADD FACTOR -46.57 g CO₂ C6H12(1) + 9 1.164 x 106 32.00 mol CO₂ 9.351 0.1069 g 0₂ O2(g)- -> 6 ΔΗ = -3919.4 6 KJ CO₂(g) + g C6H12 kJ ANSWER -419.1 6.022 x 1023 84.16 6 g H₂O mol C6H12 9 H₂O(g) RESET 2 6.439 x 1022 mol O₂ -3919.4 mol H₂O 1 J

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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q represents the change in heat of a reaction or substance. The units of q are Joules (J) or kilojoules (kJ). For a well understood substance, we can calculate the specific heat which relates the mass of the substance in grams to the amount of heat in J required to raise that amount a certain temperature. We call that specific heat. The specific heat (Cs) of water is stated in the following way: C s ( H 2 O ) = 4.186 J g ∘ C This means that it takes 4.186 J of energy to raise the temperature of 1g of water by 1ºC. The relationship between q and Cs for a given substance is where m is mass (g) and ∆T is the change in temperature in ºC (final temp - initial temp). Calculate the heat change (q) in J when 4.297 grams of water is cooled from 3.967 ºC to -2.902 ºC. Enter your answer with one decimal place (tenths). Pay careful attention to the sign of your answer. The sign of ∆T is always the same as the sign for q.
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