Question

Percentage of $N$ in Kjeldahl' method
$=\frac{1.4 \times M \times 2\left(V-\frac{V_{1}}{2}\right)}{m}$
What does $V_{1}$ represents in the above formula?

• A. Volume of $NaOH$ of molarity, $M$ used for titration of excess of sulphuric acid
• B. Volume of $NaOH$ of normality, $N$ used for titration of excess of sulphuric acid
• C. Volume of $H _{2} SO _{4}$ of molarity, $M$
• D. Volume of $H _{2} SO _{4}$ of normality, $N$

Answer 1

Answer: (A)

Correct answer is (a) Volume of $NaOH$ of molarity, $M$ used for titration of excess of sulphuric acid