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I am having trouble finding some pKa values for a lab I am doing. Does anyone...

I am having trouble finding some pKa values for a lab I am doing. Does anyone know the pKa values for: Sodium hydrogen oxalate, trans-crotonic, sodium hydrogen tartrate, 2-furoic acid

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Answer #1

For sodium salts you need to check the second pKa of that particular acid.

For Crotonic acid, the pKa is 4.69.

For Sodium Hydrogen Oxalate, you need to check for the pKa2(second ionisation) value of oxalic acid, which is 4.19.

Similarly pKa2 for tartaric acid is 4.34, which will be the case for sodium hydrogen tartarate.

pKa for 2-furoic acid is 3.12.

All of these values are for standard temperature(ie.25 degree celsius). It might change for other temparatures.

Hope this answers your query! Please upvote if it does!

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