0.10 m soultions of sodium hydroxide 7.48 Part A What is the pH of a solution...

Question

Question

0.10 m soultions of sodium hydroxide

Answer 1

Answer #1

Here, [OH^-] = 10^-7 M

pOH = -Log[OH^-]

= -Log(10^-7)

= 7

pH = 14 - pOH

= 14 - 7

= 7

Therefore, the pH of a solution that has a hydroxide ion concentration of 1.0*10^-7 M = 7

Part (ii): The pOH of 0.1 M solution of NaOH = -Log(0.1) = 1

i.e. pH = 14 - 1 = 13

Answer 2

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