A 0.5843-g sample of a plant food preparation was analyzed for its N content by the Kjeldahl method, the liberated NH3 being collected in 50.00 mL of 0.1062 M HCl. The excess acid required an 11.89 mL back-titration with 0.0925 M NaOH. Express the results of this analysis in terms of (a) %N (b) %urea, H2NCONH2 (c) %(NH4)2SO4 (d) %(NH4)3PO4
A 0.5843-g sample of a plant food preparation was analyzed for its N content by the Kjeldahl method, the liberated NH3 being collected in 50.00 mL of 0.1062 M HCl. The excess acid required an 11.89 mL back-titration with 0.0925 M NaOH. Express the results of this analysis in terms of (a) %N (b) %urea, H2NCONH2 (c) %(NH4)2SO4 (d) %(NH4)3PO4
Chapter16: Applications Of Neutralization Titrations
Section: Chapter Questions
Problem 16.20QAP
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A 0.5843-g sample of a plant food preparation was analyzed for its N content by the
Kjeldahl method, the liberated NH3 being collected in 50.00 mL of 0.1062 M HCl. The
excess acid required an 11.89 mL back-titration with 0.0925 M NaOH. Express the results of
this analysis in terms of
(a) %N
(b) %urea, H2NCONH2
(c) %(NH4)2SO4
(d) %(NH4)3PO4
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