In Kjeldahl's method for estimation of nitrogen presen in a soil sample, ammonia evolved from 0.75 g of a sample neutralized 10 mL of 1 M H_(2)SO_(4). The percentage of nitrogen in the soil is

In Kjeldahl's method for estimation of nitrogen presen in a soil sampl

1.	In Kjeldahl's method for estimation of nitrogen presen in a soil sample, ammonia evolved from 0.75 g of a sample neutralized 10 mL of 1 M H_(2)SO_(4). The percentage of nitrogen in the soil is
Answer» 37.33 45.33 35.33 43.33 Solution :`%N = (1.4 xx "Volume" xx "Molarity" xx "Basicity of acid")/("Weight of the substance TAKEN")` `= (1.4 xx 10 xx 1 xx 2)/(0.75) = 37.33`