Home
Class 11
CHEMISTRY
By adding 6 grams of NaOH to a 500 mL of...

By adding 6 grams of NaOH to a 500 mL of buffer solution, its pH value changes from 3.8 to 4.2. Calculate the buffer capacity.

Text Solution

Verified by Experts

Moles of NaOH added per one litre of buffer solution `= (12)/(40) =0.3`
Buffer capacity `=("moles of base added ")/( "change in pH")=( 0.3 )/( ( 4.2 -3.8 )) =( 0.3 )/( 0.4 ) = 0.75`
Promotional Banner

Similar Questions

Explore conceptually related problems

The pH of 1 litre buffer solution is changed from 10.8 to 11.2 by adding 20 grams of caustic soda. Calculate the buffer capacity.

When 0.02 mole of an alkali is added to an acid buffer , the pH changes from 4.75 to 4.8 the buffer capacity is

pH of a buffer solution decreases by 0.02 units when 0.12 g of acetic acid is added to 250 mL of a buffer solution of acetic acid and potassium acetate at 27^(circ)C . The buffer capacity of the solution is

4 gram NaOH dissolved in 250 ml of the solution. Calculate Molarity.

The pH of a buffer solution is 4.745 . When 0.044 mole of Ba(OH)_(2) is added to 1 lit. of the buffer , the pH changes to 4.756 . Then the buffer capacity is

2 g of NaOH per 250 ml of solution is added to a buffer solution of buffer capacity 0.2 . Then the change in pH is

100mL of a solution with pH value 2 is added with 400mL of a solution with pH value 6. Calculate the pH of the mixture.

When 0.1 mole of an acid is added to 2 lit of a buffer solution, the P^(H) of the buffer decreases by 0.5 The buffer capacity of the solution is