Question

How might you explain the difference between the ph values of the 0.01 m hcl (ph = 1.1) and the 0.01 m hc2h3o2 (ph = 3.6)? hcl produces less h+. hcl dissociates more. hc2h3o2 produces both h+ and oh-. hc2h3o2 produces more h+?

Answer 1

Answer:

HCl ionizes more

Explanation:

pH is inversely proportional to the concentration of hydronium ions. It may be calculated by the formula $pH = -log[H_3O^+]$.

Hydrochloric acid is one of the six strong acids and it ionizes to hydronium cations and chloride anions to an extent of about 100 %, meaning the molarity of hydronium would be equal to the initial molarity of hydrochloric acid.

Acetic acid is a weak acid which only partially ionizes, while the majority of acid stays in a molecular form. The same molarity of acetic acid would produce a much lower amount of hydronium as a result.

Therefore, pH of a weak acid would be greater than pH of a strong acid considering we start with the same molarity of eah.