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