申論題內容
3. (10%) A 0.9092-g sample of a wheat flour was analyzed by the Kjeldahl method.
The ammonia formed was distilled into 50.00 mL of 0.05063 M HCl; a 7.46-mL
back-titration with 0.04917 M NaOH was required. Calculate the percent of
protein in the flour. (Note: The nitrogen-to-protein conversion factor for cereals is
5.7)
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