A buffer solution is composed of 0.125 moles of NH3 and 0.14 moles of NH4Cl. What is the pH of the buffer solution after

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A buffer solution is composed of 0.125 moles of NH3 and 0.14 moles of NH4Cl. What is the pH of the buffer solution after

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A buffer solution is composed of 0.125 moles of NH3 and 0.14moles of NH4Cl. What is the pH of the buffer solution after theaddition of 0.03 moles of HCl? The Ka for NH4+ is 5.6 x 10^-10.
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