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What is the pH of 0.01 M glycine solution? For glycine, Ka₁ = 4.5 ˣ 10⁻³ and Ka₂ =1.7 ˣ 10⁻¹⁰ at 298 K
Options
(a) 3
(b) 10
(c) 6.1
(d) 7.2
Correct Answer:
6.1
Explanation:
K = Kₐ₁ x Kₐ₂ = 4.5 x 10⁻³ * 1.7 x 10⁻¹⁰,
7.65 x 10⁻¹³,
[H⁺] = √KC = √7.65 x 10⁻¹³ x 0.01 ,
= √7.65 x 10⁻¹⁵
= 0.87 x 10⁻⁷. pH = -log 0.87 x 10⁻⁷
= 7 – 0.93 = 6.07.
Related Questions: - A solid compound XY has NaCl structure . If the radius of the cation is 100 pm,
- Which one of the following esters gets hydrolysde most easily under alkaline
- The electrophile in the nitration of benzene is
- The number of sigma and pi-bonds in but-1-ene-3-yne are
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Topics: Equilibrium
(104)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A solid compound XY has NaCl structure . If the radius of the cation is 100 pm,
- Which one of the following esters gets hydrolysde most easily under alkaline
- The electrophile in the nitration of benzene is
- The number of sigma and pi-bonds in but-1-ene-3-yne are
- The hydrogen ion concentration in mol/dm, in a 0.2 M solution of a weak acid
Topics: Equilibrium (104)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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