What molarities of hbro pka 864 and kbro are needed to make, Ask an Expert

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What molarities of HBrO (pKa 8.64) and KBrO are needed to make a buffer with a pH of 7.9 if the buffer strength is 0.35 M? What volumes are needed if both species are available in 5.0 M stock solutions and 1500 ml of buffer are to be made? Calculate the buffer strength for added base. Without calculating would the buffer strength for added acid be more or less than the buffer strength for added base. Explain.

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