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You are working in a lab and need to make a buffer with a pH =...

You are working in a lab and need to make a buffer with a pH = 5.50. You have 5.00 M NaOH and 5.00 M HCl available. You observe that malonic acid (HO2CCH2CO2H or H2A) has pK1 = 2.847 and pK2 = 5.696. You only have pure malonic acid available in the lab. If you want to make 500 mL of a buffer with a total concentration of 0.100 M buffer components, what mass of malonic acid do you need to weigh out?

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Answer #1

There is no role of molarity of Naoh and Hcl . We have work only with 1M which is mention at the end .

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