The pH of a 0.1 molar solution of the acid HQ is 3. The value of the ionization constant, Ka of this acid is -
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How many litres of water must be added to litre of an aqueous solution of HCl with a pH of 1 to create an aqueous solution with pH of 2?
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The equlibrium constant of the reaction of a weak acid (HA) with a strong base ) is
at
. Hence
for
will be equal to
of
HA is titrated with
strong base (NaOH). The minimum value of equilibriwn constant (k) so that when
of titrant has been added, the reaction between
is essentially complete and the
changes by
units on addition of two more drops
of titrant is
Calculate the ratio of of a solution containing
of
of
per liter and of other solution containing lmol NaCN + lmol of HCN per liter
Given of
is the order of 10-10.
What volume of NaOH must be added to
solution of
, a weak acid
for
and
so as to adjust the
of the mixture at
?
If a solution of HCN is
ionised, the ioniation constant for
is
The of a weak acid, benzoic acid and
of a weak base, ammonium hydroxide are 4.25 and 4.75 respectively. Then the
of
solution of ammonium benzoate will be
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