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Calculate the change in pH when 8.00 mL of .100 M HCl(aq) is added to 100.0 ml of a buffer solution that is 0.100M in NH3(aq) and 0.100M in NH4CL(aq) change in pH=?

Then calculate the change in pH when 8.00 mL of 0.100M NaOH(aq) is added to the original buffer solution. change in pH=?

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