Chemistry Question on Organic Chemistry- Some Basic Principles and Techniques

Question

In Kjeldahl's method, ammonia from $5\, g$ of food neutralizes $30 \,cm^3$ of $0.1\, N$ acid. The percentage of nitrogen in the food is

Answer 1

From Kjeldahl's method, percentage of nitrogen $=\frac{1.4 \times N \times V}{w}=\frac{1.4 \times 0.1 \times 30}{5}$ $=0.84 \%$