Calculate the ph of a solution made by mixing

Asked by admin @ 23/08/2021 in Chemistry viewed by 311 People

Calculate the pH of a solution made by mixing 50 ml of 0.01M Na(OH)2 with 50 ml water

Answered by admin @ 23/08/2021

Answer:

pH=11.6

Explanation:

Firstly,

molarity of NaOH given=0.01M

so no of moles in 50 ml of naoh is =0.0005

now the same no of moles of NaOH wil be present when we add 50ml of water.

so the new molarity will be 0.005.

so pOH= -log(0.005)=2.3

so pH=14-pOH = 11.6

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