Calculate the ph of a buffer that is 0.020 m hf and 0.040 m naf. the ka for hf is 3.5 × 10-4.

The given buffer solution is 0.020 M HF and 0.040 M NaF.

Given the of HF is

Finding out :

=

= 3.46

We use the Hendersen-Hasselbalch equation to find out the pH of a buffer solution:

[Base] =[NaF] = 0.040 M

[Acid] = [HF] =0.020 M

Plugging in the values to find out pH,

pH = 3.46 + log(2)

= 3.76

Therefore, pH of the buffer is 3.76

lol idk man i guess u gotta ask bill nye the science guy

answer: e.   sour taste

explanation: acids are those substances which dissociates in water to give ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. acids are sour in taste. example: hcl

bases are those substances which dissociates in water to give ions or accepts ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. bases are bitter in taste. bases are slippery in nature.