At which pH would the net electric charge of tyrosine be zero, given that its -COOH...

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Chemistry

At which pH would the net electric charge of tyrosine be zero,given that its -COOH group has a pKa of 2.20, its –NH3+ group has apKa of 9.11, and its R group has a pKa of 10.07?

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We need to make a table in which we need to put charges for the amino acids depending on the pK values For tyrosine the charge will be zero below and 1 above its    See Answer
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