Answer:
The concentration of hydronium ions is 0.0155 mol/L
Explanation:
The aqueous solution ionization reaction for nitric acid is as follows;
HNO₃ + H₂O → NO₃⁻ + H₃O⁺
Whereby HNO₃ is a strong acid and it undergoes complete ionization in an aqueous solution
Hence one mole of HNO₃ produces one mole of H₃O⁺ ions
0.0155 mol/L HNO₃ will have 0.0155 moles of H₃O⁺ in one liter of the solution
The concentration of hydronium ions = 0.0155 mol/L.