Question

Balance the following reactions:- 1. NO2(g) +H20(l) > HNO3(aq) +NO(g)

Answer 1

Answer:

3NO2(g) +H2O(l)-->2HNO3(aq)+NO(g)

Answer 2

Answer:-

3NO₂(g) + H₂O(l) → 2HNO₃(aq) + NO(g)

Explanation:-

NO₂ + H₂O → HNO₃ + NO

Let us balance the above equation using algebraic method.

Firstly, let's rewrite the above chemical equation using letter variables for coefficients.

aNO₂ + bH₂O → cHNO₃ + dNO

Now, let's put up some series of equations for each element.

=> a : N = c + d

=> 2a + b : O = 3c + d

=> 2b : H = c

Let, c = 1

On solving the above 3 equations,

we get:-

a = 3/2, b = 1/2, d = 1/2

Now, let's put the value of the variables in the chemical equation and solve it.

=> 3/2NO₂ + 1/2H₂O → HNO₃ + 1/2NO

=> 2(3/2NO₂ + 1/2H₂O) → 2(HNO₃ + 1/2NO)

=> 3NO₂ + H₂O → 2HNO₃ + NO

Thus, it is balanced.