Explain the amount of nitrogen in an organic subsxtance

Assignment Help Chemistry
Reference no: EM13328156

The amount of nitrogen in an organic subsxtance can be determined by an anlytical method called the Kjeldahl method, in which all the nitrogen in the organic substance is converted to ammonia. The ammonia, which is a weak base, can be neutralized with hydrocholoric acid, as described in the equation. NH3(aq) + HCl(aq) arrow NH4Cl(aq) If 22.0 mL of 0.150 M HCL (aq) is needed to neutralize all the NH3(g) from a 2.25 g sample of organic material, calculate the mass percentage of nitrogen in the sample.

Reference no: EM13328156

Questions Cloud

Calculate the amount of energy stored in the capacitor : A capacitor consists of two closely spaced metal conductors of large area, separated by a thin insulating foil. Calculate the amount of energy stored in the capacitor
Determine what will the monthly payment be : ou want to buy a new sports car from Muscle Motors for $73,000. The contract is in the form of a 60-month annuity due at a 7.00 percent APR. What will your monthly payment be
How to compute the ph of each of the solutions : Calculate the pH of each of the following solutions. a. 2.1x10^-4 M Ba(oH02 b. 7.9x10^-4 M HNO3
Find the common diffraction angle : The following two lists give the diameters and sound frequencies for three loudspeakers.  find the common diffraction angle
Explain the amount of nitrogen in an organic subsxtance : The amount of nitrogen in an organic subsxtance can be determined by an anlytical method called the Kjeldahl method, in which all the nitrogen in the organic substance is converted to ammonia.
Calculate ear for first national bank and first united bank : First National Bank charges 13.7 percent compounded monthly on its business loans. First United Bank charges 14.0 percent compounded semiannually.
What was the direction of the elevators acceleration : A 17.0 kg monkey hangs from a cord suspended from the ceiling of an elevator. What was the direction of the elevator's acceleration
How to calculate the number of moles of koh : Calculate the number of moles of KOH in 9.10mL of a 0.140M KOH solution? What is the pOH of the solution at 25 C
Define intellectual property in cyberspace : Develop a one-page poster in Word or PowerPoint for a public service campaign to educate people about intellectual property rights of cyberspace for some aspect in your readings from this week.

Reviews

Write a Review

Chemistry Questions & Answers

  Define the systematic names for the formulas or the formulas

Give the systematic names for the formulas, or the formulas for the names. (Type your answer using the format copper(II) chloride for CuCl2, and using the format CO2 for CO2. Omit the centered dot for hydrates.)

  Explain in detail what is the hydroniem ion concentration

What is the hydroniem ion concentration in a solution resulting from mixing 193mL of .100M HCN and 22mL of .100M KOH at 25C? Ka for HCN=4.9x10-10

  Explain the compounds in the previous problem are aromatic

Which of the compounds in the previous problem are aromatic? Which are isomers? a.ethylene b.1-butene c.2-chloro-1,3-butadiene d.2,5-dimethyl-3-hexene e.3-isopropylcyclopentene f.1,3-dimethylbenzene

  Explain what is the osmolarity of ringer''s solution

Ringer's solution, used in the treatment of burns and wounds, is prepared by dissolving 8.6 g of NaCl, 0.30 g of KCI , and 0.33 g of CaCl2 in water and diluting to a volume of 1.00 L . What is the osmolarity of Ringer's solution

  Calculate the solubility of mgoh2 in a buffer solution

The acid ionization constant of Fe(H2O)62+(aq) is 3E-6. Compute the pH of a 0.2 M aqueous solution of Fe(NO3)2. 5. Compute the solubility of Mg(OH)2 in a buffer solution at pH=10.31. The solubility product of magnesium hydroxide is 1.2E-11

  Calculate the resulting concentration of triiodide ions

Calculate the resulting concentration of triiodide ions in the acidified solution.

  What is the magnitude of k at 75 degrees

A particular first-order reaction has a rate constant of 1.35x10^2 at 20 degrees C . What is the magnitude of k at 75 degrees C if Ea =85.6Kj/mol?

  Explain the osmotic pressure of the adipose cells

We store fats as triacylglycerides and not free fatty acids. We do this because it would change our pH and the osmotic pressure of the adipose cells.

  State expand at constant temperature until its pressure

Pressure of 0.923 atm is allowed to expand at constant temperature until its pressure reaches 0.377 atm. What is its final volume?

  Explain reactions will form a precipitate when mixed

Determine if the following reactions will form a precipitate when mixed. If one is formed, write the BALANCED formula unit, the COMPLETE IONIC, and NET IONIC equations. If a precipitate doesn't form, write NR for no reaction

  Explain what was the final ph of the rxn

An enzyme reaction, in 2ml of 0.08 M of an acetate buffer, pH=4.76. During this reaction 2micromol H+ was produced

  Explain what voltage will someone get if someone put

If a battery operates at 2.7 V, what voltage will someone get if someone put: a.) three of these batteries in parallel b.) four of these batteries in series How do I go about working this type of problem

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd