User Account

All Pages

Calculstion question, Chemistry

Assignment Help:
Nitrous acid (HNO2) is an unstable compound when prepared by the following reaction:
HCl (g) + NaNO2 (s) ? HNO2 (l) + NaCl (s).

As the product of the above reaction is unstable, the enthalpy cannot be determined directly in the laboratory. Use Hess’s law to determine the enthalpy of the above reaction using the information below.

2 NaCl (s) + H2O (l) ? 2 HCl (g) + Na2O (s) ? Ho = 506.89 kJ

NO (g) + NO2 (g) + Na2O (s) ? 2 NaNO2 (s) ? Ho = -427.17 kJ

NO (g) + NO2 (g) ? N2O (g) + O2 (g) ? Ho = -42.89 kJ

2 HNO2 (l) ? N2O (g) + O2 (g) + H2O (l) ? Ho = 33.07 kJ

Quote your answer to one decimal place.

Related Discussions:- Calculstion question

F-block elements, reactivity of f-block elements

reactivity of f-block elements

Organometallic Compounds of d-block Elements, Why can classical (Werner) oc...

Why can classical (Werner) octaedral complexes with no pi-bonding have between 12-22 valence electrons, whereas octahedral complexes with pi-bonding must have 18 electrons?

Explain four applications of adsorption, a. How can a colloidal solution an...

a. How can a colloidal solution and true solution of the similar colour be distinguished from each other? b. Give four applications of adsorption

The nature of chemical bonding, What is the nature of chemical bonding betw...

What is the nature of chemical bonding between  Cs and F: (1) Covalent (2) Ionic (3) Coordinate (4) Metallic Ans: Ionic

Inorganic salt analysis, analysis of group III basic radicals Ti 4+, Th4+, ...

analysis of group III basic radicals Ti 4+, Th4+, Zr4+, V5+, Ce4+ and UO2 2+

THERMODYNAMICS, ENTHALPY

ENTHALPY

What sort of panel is required for acceptance tests?, What Sort of Panel Is...

What Sort of Panel Is Required for Acceptance Tests? Consumer panels are the best group to use for evaluating the acceptability of a product or a range of products because the

Periodic table , explanation on the periodic tables

explanation on the periodic tables

Alcohol, what happen when allyl alcohol is reacted with pyridinium chloroch...

what happen when allyl alcohol is reacted with pyridinium chlorochromate ?

What is activation energy, The difference among Threshold energy and averag...

The difference among Threshold energy and average energy of the molecules is known as activation energy.

Write Your Message!

Captcha
Order Assignment

Featured Services

Order Now

Popular Subjects

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!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

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