Chemistry, asked by himadri630, 1 year ago

pH of two solution are 8.5 and 6 . Which of them is acidic and why ?

Answers

Answered by nandinipriya787

The solution with pH 6 is acidic. All the solutions with pH less than 7 are acidic and vice versa.

obekingtrey: Example 1:
What is the pH of a 0.20 M solution of acetic acid (Ka = 1.8 x 10-5)?

HC2H3O2(aq) + H2O(l) H3O+(aq) + C2H3O2-(aq)

HC2H3O2 H3O+ C2H3O2-
initial 0.20 0 0
change -x x x
equilibrium 0.20-x x x
Approximate solution:

Ka = (x)(x) / (0.20 - x) @ x2 / 0.20 = 1.8 x 10-5

x = [(1.8 x 10-5 )(0.20)]1/2

x = 1.9 x 10-3 M = [H3O+] ; pH = -log(1.9 x 10-3 ) = 2.72

Answered by fenildixitpatep5kuvd

The solution with 6 ph is more acidic as acidity increases down the ph

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