Please answer all of the questions for all of the points Identify the weakest ac

Question

Please answer all of the questions for all of the points

Identify the weakest acid from the following compounds: Use the pKa values below to rank the acids in order o f increasing acidity: Note. Ka ranges from 10-3 to 10-30 for weak acids, and 10 5 to 10 10 for strong acids. The pKa for strong acids is usually less than 2. The pKa for weak acids is usually between 4 and 10. Aqueous solutions with pKa > 12 are not acidic. Identify the most acidic proton in each o f the following compounds: Answer: ____ Answer: ___

Explanation / Answer

1) III

acidicty is inversly propertional to pka , hence weakest acid is with hihgest pka

2) c<b<a

3)III b ( OH has pka of 10 while CH3 has pka of range 40)

IV - a ( acid H has pka of 4.8 , CH3 has pka of 40)

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