#1. If you have 250. mL of a buffer that is 0.12 M in H2PO4- and...

Question

Question

#1.

If you have 250. mL of a buffer that is 0.12 M in H₂PO₄^- and 0.12 M HPO₄^2- , what will be the pH after 27.77 mL of 0.193 M NaOH is added?

K_a₂ is 6.21 x 10^-8 .

#2. Given 1000. mL of a 0.434 M solution of C₂H₅NH₂ (pK_b = 3.19), what is the pH if 26.45 g of C₂H₅NH₃Cl (81.5446 g/mol) are added?

Answer 1

Answer #1

Answer 2

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