Which formula is used in the Kjeldahl method for the estimation of nitrogen?
- A$\% \,N = \frac{1.4 \times M \times V}{W}$
- B$\% \,N = \frac{1.4 \times N \times V}{W}$
- C$\% \,N = \frac{1.4 \times V}{N \times W}$
- D$\% \,N = \frac{1.4 \times W}{N \times V}$
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