%3Cp%3EA)%20Describe%20how%20you%20would%20prepare%201.5%20L%20of%20a%200.5%20M%

Question

%3Cp%3EA)%20Describe%20how%20you%20would%20prepare%201.5%20L%20of%20a%200.5%20M%20phosphate%0Abuffer%20with%20a%20pH%20of%207.50.%20%20%3Cem%3E%3Cspan%20class%3D%22c1%22%3E%3Cstrong%3EShow%0Aall%20work%20for%20each%20section.%3C%2Fstrong%3E%3C%2Fspan%3E%3C%2Fem%3E%3C%2Fp%3E%0A%3Cp%3EB)%20If%205.0%20mL%20of%200.15%20M%20HCl%20is%20added%20to%20750%20mL%20of%20you%20buffer%20from%0A(A)%20what%20is%20the%20new%20pH%3F%3C%2Fp%3E%0A%3Cp%3EC)%20If%2010.0%20mL%20of%201.5%20M%20NaOH%20is%20added%20to%20750%20mL%20of%20you%20buffer%0Afrom%20(A)%20what%20is%20the%20new%20pH%3F%3Cbr%20%2F%3E%3C%2Fp%3E%0A

Explanation / Answer

Let HA= H2PO4^- and A^-=HPO4^-2


pH=7.50

Ka=6.2

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