A solution containing a mixture of lactic acid and lactate was found to have a pH of 4.26. Calculate the ratio of the lactate concentration to the lac

Given :

pH of solution of mixture of lactic acid and lactate is 4.26 .

To Find :

The ratio of the lactate concentration to the lactate .

Solution :

We know , pKa of lactic acid is :

pKa = 3.86 .

Now , the solution of lactic acid and lactate is a buffer solution .

So , pHof buffer acid is given by :

Putting all given values :

Taking anti log both the sides , we get :

Therefore , the ratio of the lactate concentration to the lactate is 2.51 .

Hence , this is the required solution .

the answer is 75.0%.

o conteúdo de calor de um sistema é igual à entalpia apenas para um sistema que é constante