Hess Law, Chemistry

Assignment Help:
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

Related Discussions:- Hess Law

Heterolysis bond fission or heterolytic, Heterolysis bond fission or Hetero...

Heterolysis bond fission or Heterolytic (i) In heterolysis bond, the covalent bond is broken in such a way that one species (that is., less electronegative) is deprived of its

How will you convert 4-nitrotoulene to 2-bromonezoic acid?, 4-nitrotolouene...

4-nitrotolouene ---> LiAlH 4 converts it to 4-aminotoluene ----> Add HNO 2 and it forms -----> diazonium salt ------> add H 3 PO 2 to get Toluene -----> add Br 2 /CCl 4 - 2

Sn2 rection, what is the hybridization of transion state of sn2 rection

what is the hybridization of transion state of sn2 rection

Flame photometer, What is the advantage of using a flame photometer instrum...

What is the advantage of using a flame photometer instrument designed to operate with an internal standard ?

Explain multimolecular and macromolecular colloids, What is the difference ...

What is the difference among multimolecular and macromolecular colloids? Give one example of each type. How are associated colloids dissimilar from these two types of colloids?

Show the oxoacids of sulphur, Q. Show the Oxoacids of Sulphur? As you k...

Q. Show the Oxoacids of Sulphur? As you know, oxoacid is an acid in which the ionisable hydrogen atom is bonded, through an oxygen atom to the central nonmetal atom, e.g., E-OH

Chemical kinetics, the decomposition of nh3 on a platinum surface is a zero...

the decomposition of nh3 on a platinum surface is a zero order reaction. what are the rates of production of n2 and h2 if k+2.5*10-4 mol-1 lsec-1?

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd