question archive 1) Use pKa skills/equations to determine the answers for the following: a) 18
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1) Use pKa skills/equations to determine the answers for the following:
a) 18.52 mL of an unknown weak acid required 20.55 mL of 0.0650 M NaOH to reach the equivalence point. What is the molarity of the weak acid? (assume acid is monoprotic).
b) The Ka of an unknown weak acid is 4.4 x 10-10. Determine the pKa of the weak acid.
c) An unknown acid has a pKa = 3.85. Determine the Ka for the acid.