MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Boiling Point of Alkanes

20. if H3A is...

Question

20. if H3A is tribasic acid,assuming firsts disociation to be 100%,second dissociation 50%, third dissociation 20%.then find vonthoff factor (i) for H3A?

Open in App

Solution

Suggest Corrections

thumbs-up

20

Similar questions

Q. If first dissociation of

X (O H)_{3}

100 %

whereas second dissociation is

50 %

and third dissociation is negligible then the

p H

4 \times 10^{- 3} M X (O H)_{3}

Q. If the first dissociation of

X {(O H)}_{3}

is 100% where as second dissociation is 50% and third dissociation is negligible then the pH of

4 \times 10^{- 3}

M X {(O H)}_{3}

Q. For a polybasic acid, the dissociation constants have different value for each steps, e.g.,

H_{3} A ⇌ H^{+} + H_{2} A^{-}; K = K_{a_{1}}

H_{2} A^{-} ⇌ H^{+} + H A^{2 -}; K = K_{a_{2}}

H A^{2 -} ⇌ H^{+} + A^{3 -}; K = K_{a_{3}}

What is the observed trend of dissociation constants in succesive stage?

Q. Calculate the pH of

6.66 \times 10^{- 3} M

A l (O H)_{3}

its first dissociation is 100% whereas second dissociation is 50% and third dissociation is negligible.

M K_{3} A

(potassium salt of a tribasic acid

H_{3} A

(Dissociation constants of acid are

k_{a_{1}} k_{a_{2}} & k_{a_{3}}; h << 1

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Alkanes - Physical Properties

CHEMISTRY

Watch in App

explore_more_icon

Explore more

Boiling Point of Alkanes

Standard XII Chemistry

Join BYJU'S Learning Program

CrossIcon