Wednesday
November 26, 2014

Homework Help: chemistry

Posted by anna on Wednesday, October 21, 2009 at 10:18am.

there's a 5.44 g sample of NH4NO3 and 150 g sample of water. So they ask for the change in enthalpy in kJ/mol. They give the temperature change from 16.2 degrees C to 18.6 degrees C. They also provide the specific heat capacity of the entire solution (155.4g) as 4.2 J/g*K. How do you solve for the change in enthalpy?? I kept getting the wrong answer. I thought you had to just use the equation q = mc*(change in temperature)

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

chemistry - there's a 5.44 g sample of NH4NO3 and 150 g sample of water. So they...
chemistry - NH4NO3(s) NH4+(aq) + NO3−(aq) In order to measure the enthalpy...
Chemistry - In a coffee cup calorimeter, 1.60 g of NH4NO3 is mixed with 75.0 g ...
CHM1045 - NH4NO3(s) right arrow NH4+(aq) + NO3−(aq) In order to measure ...
Chem - 1) A 15.0 g sample of nickel metal is heated to 100.0 C and dropped into ...
college chemistry-thermochemistry - A 1.50g sample of NH4NO3(s) is added to 35....
chemistry - In a coffee-cup calorimeter, 1.91 g of NH4NO3 is mixed with 75.0 g ...
Chemistry - In a coffee-cup calorimeter, 1.70 g of NH4NO3 is mixed with 76.0 g ...
Chemistry - Reposted: Use Hess's law to calculate the enthalpy change for the ...
chemistry - The enthalpy change for the solution process when solid sodium ...

Search
Members