Fixed volume of 0.1 M benzoic acid `(pK_(a)=4.2)` solution is added into 0.2 M sodium benzoate solution and formed a 300 mL, resultant acidic buffer solution. If pH of this buffer solution is 4.5 then find added volume of benzoic acid :

Fixed volume of 0.1M benzoic acid solution is added into 0.2 M soldium benzoate solution and formed a 300 ml, resultant acidic buffer solution. If pH of this buffer solution is 4.5 then find added volume of benzoic acid - (Given : pK_(a) benzoic acid =4.2)

Fixed volume of 0.1M benzoic acid (pK_(a) = 4.2) solution is added into 0.2M sodium benzote solution and formed a 300mL , resulting acidic buffer solution. If pH of the resulting solution is 3.9 , then added volume of banzoic acid is

Fixed volume of 0.1M benzoic acid (pK_(a) = 4.2) solution is added into 0.2M sodium benzote solution and formed a 300mL , resulting acidic buffer solution. If pH of the resulting solution is 3.9 , then added volume of banzoic acid is

Calculate the volume of 0.1 M acetic acid solution to be mixed with 50cm^(3) of 0.2M sodium acetate solution, in order to prepare a standard buffer of pH 4.94 ( pK_(a) of acetic acid = 4.74).

1.0 L solution is prepared by mixing 61 g benzoic acid (pK_(a)=4.2) with 72 g of sodium benzoate and then 300 mL 1.0 M HBr solution was added. The pH of final solution is :

1.0 L solution is prepared by mixing 61 g benzoic acid (pK_(a)=4.2) with 72 g of sodium benzoate and then 300 mL 1.0 M HBr solution was added. The pH of final solution is :

1 M benzoic acid (pK_a=4.20) and 1 M C_6H_5COONa solutions are given separately What is the volume of benzoic acid required to prepare a 300 ml buffer solution of pH =4.5 ? [log 2 =0.3]