The nitrogen content of organic compounds can be determined by the Dumas method. The compound in question is first passed over hot Cuo(s): Hot CuO(s)' Compound N2(g) + CO2(g) + H20(g) The gaseous products are then passed through a concentrated aqueous KOH solution to remove the CO2. The remaining gas contains N, and water vapor. A 0.143-g sample of a compound was treated as above, producing 89.1 mL of N2 saturated with water vapor at 25 °C and 761.5 torr. What is the mass percent of nitrogen in the compound? (The vapor pressure of water at 25 °C is 23.8 torr.)

The nitrogen content of organic compounds can be determined by the Dumas method. The compound in question is first passed over hot Cuo(s): Hot CuO(s)' Compound N2(g) + CO2(g) + H20(g) The gaseous products are then passed through a concentrated aqueous KOH solution to remove the CO2. The remaining gas contains N, and water vapor. A 0.143-g sample of a compound was treated as above, producing 89.1 mL of N2 saturated with water vapor at 25 °C and 761.5 torr. What is the mass percent of nitrogen in the compound? (The vapor pressure of water at 25 °C is 23.8 torr.)

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

What is the properIUPAC name for this
The next set of questions are assertion type: There are two statements in a sentence. Choose from the options A-E if A. Both statements are true and relatedB. Both statements are true but not relatedC. The first statement is true and the second statement is falseD. The first statement is false and the second statement is trueE. Both statements are false 25. Quartenary ammonium salts with hydrocarbon chains are used as detergent BECAUSE the presence of hydrophobic tail and ionic head facilitates its detergent action.
Classify each molecule as hydrophilic, hydrophobic, or amphipathic (amphiphilic). بہلا H₂C OH Hydrophilic OH CH3 Hydrophobic Answer Bank CH₂ H OOC-CH₂-C-COO NH3 Amphipathic
Complete the following reaction by writing the name of the product. 0 HCH + H₂ Ni or Pt ?
OH O OH DCC pyridine
Question 10 Based on your answers to Questions 7, 8, and 9, which ranks these three compounds in order of increasing water solubility? "NH₂ NH₂ NH₂ "NH₂
O + OH
The five parts of question 16 relate to the following three molecules: N-H А в с A (a) Which of the three molecules above are structural isomers? (b) Which of the molecules contains a carbon with linear geometry? (c) Which molecule contains a tertiary amine? (d) Which molecule only contains sp³ hybridized atoms (not including hydrogen)? (e) Which molecule is chiral? Circle the stereocentre in this molecule.
v Question Completion Sta A Moving to another question will save this response. Question 19 Which of the following contains an ester? II CH3CH2 OCH2CH3 (CH3)3C HO, II .C. CHN-CH3 C. (CH3)2CH N(CH3)2 A Moving to another question will save this response. O=0 O=U
A + HOCH-CH-OH На H C D H₂O