Wednesday
July 23, 2014

Homework Help: Chemistry

Posted by Angela on Sunday, December 9, 2012 at 11:34am.

If the heat from burning 6.000 g of
C6H6 2C6H6(l) + 15O2(g) -> 12CO2(g) + 6H2O(l) + 6542 kJ is added to 5691 g of water at 21 C, what is the final temperature of the water?
Please tell me what I am doing wrong:
293,551= 5691*4.2*(Tf-21C)
293551= 23902.2Tf - 50946.2
343946.2= 23902.2Tf
14.4=Tf

The homework program is telling me it's wrong.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Chemistry - 2C6H6(l) + 15O2(g) -> 12CO2(g) + 6H2O(l) + 6542 kJ If the heat ...
Chemistry - If the heat from burning 5.800 g of C6H6 is added to 5691 g of water...
Chemistry - If 5.300 g of C6H6 is burned and the heat produced from the burning ...
CHEM - If the heat from burning 5.800 g of C6H6 is added to 5691 g of water at ...
Chem - DrBob222, I got an answer of 33 and 24.23 as the temperature but it is ...
science - if 8.100 grams of C6H6 is burned and heat is produced from the burning...
General Chemistry - The value of delta H for the reaction below is -6536 kJ. ...
AP Chemistry - For the reaction 2C6H6+15O2 =12CO2+6H2O, what is the maximum ...
Chemistry - What volume of benzene (C6H6, d= 0.88 g/mL, molar mass = 78.11 g/mol...
Chemistry - What mass of benzene(C6H6, molar mass=78.11g/mol) is required to ...

Search
Members