Hess Law, Chemistry

What was the calculated ?H value obtained for the reaction NH3 + HCl –› NH4Cl using the thermodynamic data in your lab procedure?
The thermodynamic data is:
•?H°f for NH3 (aq) = - 80.29 kJ/mol
•?H°f for HCl (aq) = - 167.2 kJ/mol
•?H°f for NH4 (aq) = - 132.5 kJ/mol
•?H°f for Cl- (aq) = - 167.2 kJ/mol

a. 80.29 kJ
b. -167.2 kJ
c. 52.2 kJ
d. -80.29 kJ
e. -52.2 kJ
Posted Date: 10/31/2012 1:02:39 PM | Location : United States







Related Discussions:- Hess Law, Assignment Help, Ask Question on Hess Law, Get Answer, Expert's Help, Hess Law Discussions

Write discussion on Hess Law
Your posts are moderated
Related Questions
Q. Describe Structure of Solids? Ans. Solids are different from gases and liquids because they have a fixed shape. This definite shape occurs as the individual particles w


ionic equation for potassium dichromate and potassium manganate



Q. Explain Collision Theory? Ans. Why do some reactions take place faster than others? What actually happens in a chemical reaction? Consider a gaseous reaction of the typ

How do i balance the following equation: Ni+CO==>NI(CO)4? I can''t figure out the oxidation state of Ni and C on the product side.

what is sp- sp bonding

Uses of Catechol Catechol finds use as photographic developer and in the manufacture of alizarin and adrenaline hormone and like an antioxidant (inhibitor in auto oxidation) fo

explain the merits and demerits of calomel electrode