Home
Class 11
CHEMISTRY
The pKa values for the three acidic grou...


The pKa values for the three acidic group P,Q,R are 4.3, 9.7 and 2.2 respectively, Calculate the isoelectric point of the amino acid?

Text Solution

Verified by Experts

The correct Answer is:
3.25
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • GENERAL ORGANIC CHEMISTRY

    BANSAL|Exercise Exercise 2|39 Videos

  • ATOMIC STRUCTURE

    BANSAL|Exercise Exercise.3|35 Videos

  • HYDROCARBONS

    BANSAL|Exercise Exercise 3|12 Videos

Similar Questions

Explore conceptually related problems

The pK_(a) values of ionisable groups in lysine are 2.18, 8.95 and 10.79 respectively. Find isoelectric point of lysine.

Calculate isoelectric point (PI) for following basic amino acid if:

Knowledge Check

  • The pK_(a1) and pK_(a2) of an amino acid are 2.3 and 9.7 respectively. The isoelectric point of the amino acid is:

    A
    6
    B
    3.7
    C
    12
    D
    7.4

  • The correct acidic strength order of acidic hydrogen P,Q and R is respectively :

    A
    `PgtQgtR`
    B
    `PgtRgtQ`
    C
    `RgtQgtP`
    D
    `QgtRgtP`

    • Similar Questions

    Explore conceptually related problems

    Proteins and amino acid ||Calculation OF isoelectric point

    An amino acid reacts with 10ml 0.05MNaOH and the final solution has pH=2.30 When 20ml of these base is added in the resulting solution.The pH become 9.7 .Identify the amino acid and calculate the isoelectric point of the amino acid.This amino acid is prepared by the reaction of compound (X) with NH_(3) and further hydrolysis with HCN compound (X) is less C atom containing compound that gives postitive iodoform test and positive Fehling's solution test. Amino acid is:

    An amino acid reacts with 10ml 0.05MNaOH and the final solution has pH=2.30 When 20ml of these base is added in the resulting solution.The pH become 9.7 .Identify the amino acid and calculate the isoelectric point of the amino acid.This amino acid is prepared by the reaction of compound (X) with NH_(3) and further hydrolysis with HCN compound (X) is less C atom containing compound that gives postitive iodoform test and positive Fehling's solution test. Compound (X) is:

    The pka values for the three ionizable groups x, y & z of glutamic acid are 4.3, 9.7 & 2.2 respectively underset((x))(HOOC)-CH_(2)-underset((y))underset(+NH_3)underset(|)(CH)-underset((z))(COOH) The isoelectric point for the amino acid is :

    An amino acid reacts with 10ml 0.05MNaOH and the final solution has pH=2.30 When 20ml of these base is added in the resulting solution.The pH become 9.7 .Identify the amino acid and calculate the isoelectric point of the amino acid.This amino acid is prepared by the reaction of compound (X) with NH_(3) and further hydrolysis with HCN compound (X) is less C atom containing compound that gives postitive iodoform test and positive Fehling's solution test. Isoelectric point of the amino acid is:

    In an amino acid the carboxylic acid group has K_(a)=10^(-4) and amino group has K_(b)=10^(-5) pH at isoelectric point of that amino acid is [underset((Ka=10^(-4)))underset(COOH)underset(|)(H_(5)C_(2)-CH-overset(+)(N)H_(3)(Kb=10^(-5)))]

    Home
    Profile