Find the composition of an acidic buffe...

Find the composition of an acidic buffer mixture made up of HA AND naA of total molarity 0.29 having ph 4.4 and `K_a = 1.8xx 10^(-5)` in terms of concentration of salt and acid respectively:

A

0.09 M and 0.20 M

B

0.20 M and 0.09 M

C

0.1 M and 0.19 M

D

0.19 M and 0.10 M

Text Solution

Verified by Experts

The correct Answer is:

A

Topper's Solved these Questions

ENVIRONMENTAL CHEMISTRY
MBD PUBLICATION|Exercise QUESTION BANK|299 Videos
GENERAL PRINCIPLES OF ISOLATION OF ELEMENTS
MBD PUBLICATION|Exercise QUESTION BANK|564 Videos

Similar Questions

Explore conceptually related problems

Calculate PH Of 0.01 M acetic acid . K_a = 1.8 xx 10^-5 at 298 K.

If the dissociation constant of an acid HA is 1 xx 10^(-5) the Ph of a 0.1 M solution of the acid HA will be approximately:

For preparing a buffer solution of pH 6 BY mixing sodium acetate and acetic acid the ratio of concentration of salt and acid (K_a=10^(-5)) Should be :

For a 0.01 (N) solution of sodium acetate, calculate pH. Given for acetic acid K_a = 1.9 xx 10^(-5) .

Calculate the amount of acetic acid present in one litre, having degree of dissociation equal 1% and K_(a) = 1.8 xx 10^(-5) .

What is PH at which an acid indicator with K_a = 1xx 10^(-5) changes colour when the indicator concentration is 1xx 10^(-3) M ?

50 ml of 2 N acetic acid mixed with 10 ml of 1N sodium acetate solution will have an approximate ph of (K_a=10^(-5))

The dissociation constants of two acid HA_1 and HA_2 are 2.9xx10^(-4) and 1.8xx10^(-5) respectively The relative strengths of the acid will be :

In the hydrolytic equilibrium A^- + H_2O hArr HA + OH^- K_a = 1.0 xx 10^(-5) . The degree of hysrolysis of 0.001 M solution of the salt is :

At a certain temperature the dissociation constant of 0.25 M NH_4OH is 1.8 xx 10^-5 calculate its degree of ionisation at the same temperature.

MBD PUBLICATION-EQUILIBRIUM-QUESTION BANK

What volume of 1 M sodium formate solution should be added to 50 ml of...
Text Solution
|
How many mole of HCl are required to prepare one litre of buffer solut...
Text Solution
|
Find the composition of an acidic buffer mixture made up of HA AND n...
Text Solution
|
A weak acid HA after treatment with 12 ml of 0.1M strong base BOH has ...
Text Solution
|
Zn salt is mixed with (NH4)2S of molarity 0.021 M Calculate the amount...
Text Solution
|
What is the PH at which Mg(OH)2 begins precipitate from a solution con...
Text Solution
|
18 ml of mixture of acetic acid and sodium acetate required 6 ml of 0....
Text Solution
|
A certain ion B^- has an Arhenius constant of basic character (equ. Co...
Text Solution
|
Acetic acid and propionic acid have Ka value 1.75xx10^(-5) and 1.3xx10...
Text Solution
|
The ionisation constant of NH4^+ in water is 5.6xx10^(-10) at 25^@C th...
Text Solution
|
If PKbfor fluoride ion at 25^@C is 10.83. predict the ionisation const...
Text Solution
|
Approximate PH of 0.10 M aqueous H2S solution having K1 and K2 for H2S...
Text Solution
|
Which of the following species is more soluble in water ?
Text Solution
|
The self ionisation constant for pure formic acid K=[HCOOH2^+][HCOO^-]...
Text Solution
|
Liquid ammonia ionises to a slight extent. At -50^@C its self ionisati...
Text Solution
|
What is the concentration of fluoracetic acid (Ka of acid = 2.6xx10^(...
Text Solution
|
What molar concentration of NH3 provides a [OH^-] OF 1.5xx10^(-3) ? (K...
Text Solution
|
1 ml of 0.1 N Hcl is added to 999 ml solution of NaCl . The PH of the ...
Text Solution
|
What is the volume of water needed to dissolve 1 g of BaSO4 (Ksp=1.1xx...
Text Solution
|
The solubility of BaSO4 in water is 0.00233 g per litre at 30^@C . The...
Text Solution
|