Question

3. (pt) What is the pH of a 3M solution of HNO? 4. (9 pts) Complete the reactions below and identify the acid/ base conjugate airs with your reasoning a) Rbot + H₂CO3 cap + c) b) H₂SO₃ + KOH ragl car 2 NaHS (aph , (4) in cl * ВАМ НРО, 244 aq= 5. 16 pts) Write the expected rate law for reactions 4 ca) and (6) for the above problem and your reasoning 6. (2 pts) An unknown acid has an initial molarity of 0.160 M and a percent ionization of 21.5% Detemine ' the pH and a possible identity of this acid.

Answer 1

The pH of a 3M solution of HNO is 0.52.

Step-by-step explanation:

To find the pH of a solution, we need to know the concentration of hydronium ions ([H3O+]). In this case, the concentration of HNO is given as 3M. Since HNO is a strong acid, it will completely dissociate in water to form H+ ions. Therefore, the concentration of H+ ions will be equal to the concentration of HNO, which is 3M.

The pH is calculated using the formula pH = -log[H+]. Therefore, the pH of the 3M solution of HNO is simply -log(3) = 0.52.

Answer 2

The pH of a 3M solution of HNO3 is approximately 0, as the strong acid ionizes completely, yielding a hydronium ion concentration equal to the molarity of the acid.

Step-by-step explanation:

The pH of a solution is a measure of its acidity or basicity. For a strong acid like HNO3, which ionizes completely in water, the concentration of hydronium ions ([H3O+]) is equal to the molarity of the acid. Given a 3M solution of HNO3, the hydronium ion concentration is also 3M. To calculate the pH, you take the negative logarithm of the hydronium ion concentration. Thus, pH = -log(3) which approximately equals -0.477. However, since pH cannot be negative, we must understand that a high acid concentration can result in a pH that approaches zero. Therefore, the pH of a 3M solution of HNO3 is approximately 0.