Question- strong base is dissolved in 525 ml of 0200 m, Chemistry

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Question- strong base is dissolved in 525 ml of 0200 m

Question- Strong base is dissolved in 525 ml of 0.200 M weak acid (Ka = 3.94*10^-5) to make a buffer with a ph of 4.20. Assume that the volume remains constant when the base is added.

How many moles of strong base were initially added?

Please carry out what you can and illustrate your work so I can follow. Thanks

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Chemistry: Question- strong base is dissolved in 525 ml of 0200 m

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Chemistry: Question- strong base is dissolved in 525 ml of 0200 m

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