0.0045 M HNO3 calculate the H3O concentration

H3O conc will be 0.0045M because HNO3 is a strong acid

To calculate the H3O+ concentration of a given concentration of HNO3, you need to consider the dissociation of HNO3 in water. HNO3 is a strong acid, and it dissociates completely in water to form H+ ions and NO3- ions.

The balanced equation for the dissociation of HNO3 in water is:

HNO3(aq) → H+(aq) + NO3-(aq)

Since the concentration of HNO3 is given as 0.0045 M, this means that the concentration of H+ ions will also be 0.0045 M.

Therefore, the H3O+ concentration is equal to the H+ concentration, and in this case, it is 0.0045 M.