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

The Effect of HEat On MEtal Carbonates , In the discussion it asks, what is...

In the discussion it asks, what is a possible extension that can be cinsidered, can u please help me , thanks :)

Periodic table, what are the diagonal relationship between berylium and alu...

what are the diagonal relationship between berylium and aluminium

Determine the percentage of total solids in the milk, Q. Determine the perc...

Q. Determine the percentage of total solids in the given samples of milk After undertaking this activity, you will be able to: • explain the technique of determination of

The maximum number of electrons, The maximum number of electrons in p -orbi...

The maximum number of electrons in p -orbital with n= s, m=1  is: (1) 6        (2) 2       (3) 14       (4) 10 Ans: 2

Which of the following configuration is correct for iron, Which of the foll...

Which of the following configuration is correct for iron : (1) 1s 2 , 2s 2, 2p 6 , 3s 2 , 3p 6 ,, 3d 5    (2) 1s 2 , 2s 2 , 2p 6 , 3s 2 ,3p 6 , 4s 2 , 3d 5            (3)

Organic, Distinguish between acetaldehyde and ketone

Distinguish between acetaldehyde and ketone

Assignment, laws of chemical combinations

laws of chemical combinations

What is geometrical isomers, Q. What is Geometrical isomers? Let us tak...

Q. What is Geometrical isomers? Let us take one final example of Ma 2 b 2 cd where the following five isomers are possible as shown in Fig. 'When writing the geometrica

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