elijahbravo89 elijahbravo89

20-02-2019
Chemistry

contestada

If a weak acid is 25 deprotonated at ph 4 what would the pka be

Respuesta :

colochosdeoro colochosdeoro

20-02-2019

4.48

pH=pKa+log([A-/HA])

25% deprotonated tells us that A- is .25 and that the rest (75% is protonated) thats .75.

4 = pKa + log \frac{.25}{.75}

4 - log \frac{.25}{.75} = pKa

4.48=pKa

Answer Link

Otras preguntas

In 1929, ongoing economic issues led to

how to find the length of a cylinder when u have volume and circumference

On Monday, stock A's price fell 0.67 and stock B's price fell 0.60. Stock C's price did not fall as much as stock A's, but it fell more than stock B's. Which a

We Must Continue to Fund the International Space Station (ISS) Project This program fosters understanding among the nations of the world. It also extends our kn

The importance of media in south africa

How hot is the outer core?

Which pronoun best completes the sentence? How is the pronoun used? Are Mei-Ling and __________ singing together today? A. we; subject B. us; subject C. us

Jim Walton performed services on credit for $2,450. A debit for this transaction should be recorded to A. revenue. B. accounts receivable. C. accounts p

On Monday, stock A's price fell 0.67 and stock B's price fell 0.60. Stock C's price did not fall as much as stock A's, but it fell more than stock B's. Which a

(MC)Which statement describes the approach the Warren Court took to the issue of segregation? It declared segregation unconstitutional but ruled that integrat