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What is a polyprotic acid? 2. How many moles of H3O + are present in 50...

What is a polyprotic acid?
2. How many moles of H3O + are present in 50 mL of 0.3 M H2SO4?
4. If 20.20 mL of 0.122 M NaOH are required to reach the first equivalence point of a solution of citric acid (H3C6H5O7), how many mL of NaOH are required to completely neutralize this solution?
5. If the pH at one-half of the neutralization points of a dibasic acid is 3.52 and 6.31 respectively, what are the values for the pKa1 and pKa2?
From pKa1 and pKa2 calculate the Ka1 and Ka2.

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Answer #1

1 ans... Poly protic is the one which can release more than one acidic protons on dissociation..

Eg. h2so4, h3po4 etc..

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