Page 1 of 1

HOTDOG problem

Posted: Thu Feb 14, 2019 9:58 pm
by Jasmin Argueta 1K
In number 4A of the hotdog packet we didn't multiply the enthalpies by a negative when we flipped the reaction, does anyone know why? I thought we were suppose to multiply by a negative when we flipped the reaction because it's now the inverse.

Re: HOTDOG problem

Posted: Thu Feb 14, 2019 10:47 pm
by Chem_Mod
Can you post the question in details?

Re: HOTDOG problem

Posted: Fri Feb 15, 2019 11:26 am
by Chris Freking 2G
You do flip the enthalpies when the equation is flipped. The final equation should be (2*-345kJ) + (2*21kJ) + (150kJ), where the first equation is multiplied by 2, the second equation is flipped and multiplied by 2, and the final equation is flipped as to give the final reaction 2GingerAle + 5RootBeer -> 2Vodka.

Re: HOTDOG problem

Posted: Sun Mar 17, 2019 7:47 pm
by avshi10b
Thank you