Thursday
December 18, 2014

Homework Help: Chemistry

Posted by Jessica on Monday, July 1, 2013 at 11:08pm.

Calculate the change in enthalpy when 52.0 g of solid chromium at 25C and 1 atm pressure is oxidized. (Hf for Cr2O3(s) is 1135 kJ/mol.)
4Cr(s) + 3O2(g)  2Cr2O3(s)

a. 1135 kJ
b. 284 kJ
c. 568 kJ
d. +1135 kJ
e. +568 kJ

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Chemistry - Which of the following statements is incorrect concerning the ...
Chemistry - Which of the following statements is incorrect concerning the ...
chemistry - Determine the enthalpy for the partial combustion of methane to ...
Chemistry - Calculate the enthalpy change in kJ when 21.6g of H2S is burned. ...
Chemistry - Reposted: Use Hess's law to calculate the enthalpy change for the ...
chemistry - Oxygen reacts with the dipeptide glycylglycine [C4H8N2O3(s)] to form...
Chemistry - At 298 K, deltaGo = - 6.36 kJ for the reaction: 2N2O(g) + 3O2(g) &#...
AP Chem - Need help with this practice problem. I got the values for the gas to ...
AP Chem - Need help with this practice problem. I got the values for the gas to ...
Chemistry - 2h2s g 3o2 g 2so2 g 2h2o g H=-1036KG/MOL calculate enthalpy change ...

Search
Members