Answer:
8.73
Explanation:
The concentration of acetic acid can be determined as follows:
Moles of =
=0.0090 moles
Moles of
= 0.0090 moles
The equation for the reaction can be expressed as :
----->
Concentration of ion =
=
= 0.052 M
Hydrolysis of ion:
----->
⇒
=
As K is so less, then x appears to be a very infinitesimal small number
0.052-x ≅ x
pH = 14 - pOH
pH = 14 - 5.27
pH = 8.73
Hence, the pH of the titration mixture = 8.73
The answer is (2) 12mL. The reaction equation is NaOH + HCl = NaCl + H2O. So the mol number of NaOH is equal to HCl. The concentration of NaOH is twice of HCl so the volume of HCl is twice of NaOH.
Answer: I think you forgot to put the image up
Step by step explanation:
True I believe because when the current circuit is at its limit it will be damaged