Home > Chemistry > Balancing Chemical Equations

What are balanced equation for #HNO_3# reacting with water and #HNO_2# reacting with water?

Answer 1

Noah Aldrich

The balanced equations for HNO₃ reacting with water and HNO₂ reacting with water are:

HNO₃ + H₂O → H₃O⁺ + NO₃⁻
HNO₂ + H₂O ⇌ H₃O⁺ + NO₂⁻

By signing up, you agree to our Terms of Service and Privacy Policy

Answer 2

Ellie Andrews

We examine the reaction:

#HX + H_2O rightleftharpoons H_3O^(+) + X^(-)#

For #"nitric acid"#, #X^(-)=NO_3^-#, for #"nitrous acid"#, #X^(-)=NO_2^(-)#.

In the case of nitric acid, the equilibrium LIES FARTHER to the right (almost quantitatively).

This site quotes a #K_a# value for #HNO_2# of #4xx10^-4#, which characterizes nitrous acid as a moderately weak acid.

By signing up, you agree to our Terms of Service and Privacy Policy

Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.