A 0.14 M HNO₂ solution is 5.7% ionized. Calculate the H⁺ ion concentration. A) 8.0 * 10^-3 M B) 0.057 M C) 0.13 M D) 0.14 M E) 0.80 M

Question

Quizplus · Accepted Answer

The ionization equation for HNO₂ is: HNO₂ ⇌ H⁺ We are given that the solution is 5.7% ionized, which means that only 5.7% of the HNO₂ molecules have dissociated into H⁺ ions. This means that the concentration of H⁺ ions is: [H⁺] = 0.057 × 0.14 = 8.0 × 10^-3 M Therefore, the correct answer is A.

A 014 M HNO2 Solution Is 5

A 014 M HNO₂ Solution Is 5