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Chemistry Homework Help => AP Chemistry => Topic started by: ann on February 08, 2023, 11:37:34 PM

Title: unit 6 question-combustion enthalpy
Post by: ann on February 08, 2023, 11:37:34 PM
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I need help with this one please
Title: Re: unit 6 question
Post by: chenbeier on February 09, 2023, 05:18:39 AM
Q = ΔT * c/m

Q = ((27,69-21,36) ?C * 12,3 kJ/?C) /1,55  g = 50,23 kJ/g
Title: Re: unit 6 question-combustion enthalpy in Bomb calorimeter.
Post by: uma on February 09, 2023, 06:22:20 AM
Quote from: ann on February 08, 2023, 11:37:34 PM
I need help with this one please
Heat gained by water in bomb calorimeter = heat lost during combustion of propane
q(water) = C Delta t
This is the heat lost by combustion of 1.55 g of propane.
Heat lost by per g = - q(water) /.1.55g