When using the Kjeldahl formula , if the concentration of the standard absorbing acid () is given in — Practical Organic Chemistry and Purification Chemistry Question
Question
When using the Kjeldahl formula $\%N = \frac{1.4 \times (N \times V)}{W}$, if the concentration of the standard absorbing acid ($H_2SO_4$) is given in Molarity ($M$), what substitution is necessary?
Answer: C
💡 Solution & Explanation
The formula relies on Normality ($N$). Since $H_2SO_4$ is dibasic ($n_{\text{factor}} = 2$), its Normality is exactly twice its Molarity ($N = 2M$).
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