Calculate pH of Buffer Step-by-Step Guide

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To calculate the pH of a buffer solution after adding NaOH, first determine the moles of the acid (HONH2) and its conjugate base (HONH3Cl). When NaOH is added, it reacts with the acid, leading to a change in their concentrations. The Henderson-Hasselbalch equation is then used to find the pH, which requires the pKa value of the acid. The calculated pH should be around 6.18, depending on the accuracy of the pKa used. Understanding these steps allows for solving similar buffer problems effectively.
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I have no idea how to find the pH of a buffer solution:
Please step by step!
Calculate the pH after 0.020 mol NaOH is added to 1.00 L of:
a mixture containing 0.100 M HONH2 and 0.100 M HONH3Cl

please step by step instruction so I can follow and do other problems on my own! Thanks
 
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its been a while but don't you just find the moles of each. then find out how many OH or H you have and find the ph like that? or was that not buffer?
 
i don't believe that's how you do it
 
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would the answer be 6.18?
 
ahhh the henderson hasslebach i remember that one. Yeah you just have to use that equation with the mols of acid and base taht you have.
 
Depends on what value you have used for pKa. Correct ball park for sure.
 
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