Concept explainers
The percentage of nitrogen by mass in each of the given compound has to be calculated.
Answer to Problem 19E
Percentage mass of nitrogen in urea is 47 percent.
Percentage mass of nitrogen in Ammonium nitrate is 35 percent.
Percentage mass of nitrogen in Ammonium sulfate is 21 percent.
Explanation of Solution
Mole of any elements is defined as “The amount of the element whose, mass in grams is equal to the
Avogadro’s number (
The product of total number of moles and the atomic mass of the substance gives the total mass of the substance.
Formula mass of urea (
Formula mass of Urea can be calculated as,
Therefore,
The percentage mass of nitrogen in urea is 47 percent.
Formula mass of ammonium nitrate (
Formula mass of Ammonium nitrate can be calculated as,
Therefore,
The percentage mass of nitrogen in ammonium nitrate is 35 percent.
Formula mass of ammonium sulfate (
Formula mass of Ammonium sulfate can be calculated as,
Therefore,
The percentage mass of nitrogen in ammonium sulfate is 21 percent.
Conclusion:
The percentage of nitrogen by mass in each of the given compound was calculated.
Want to see more full solutions like this?
Chapter 12 Solutions
Physical Universe
- A sample of vinaigrette salad dressing has a total mass of 188 g, a total volume of 196 cm³ , and consists only of oil (density = 0.879 g/cm³) and vinegar (density = 1.056 g/cm³). What is the volume of each component in this mixture? Assume that the volumes are additive. volume of oil: cm3 volume of vinegar: cm3arrow_forwardThere are 58 grams of carbs in 1/4 cup of syrup for a particular brand. How many carbs are in 3 tablespoons?arrow_forwardRed gold is a gold-copper alloy used to make jewelry. A piece of jewelry made of red gold weighs 8.50 g and has a volume of 0.583 cm. Gold has a density of 19.3 g/cm³ and copper has a density of 8.96 g/cm³. Calculate the percentage by mass of each metal in the jewelry. Assume the total volume of the jewelry is the sum of the volumes of the two metals it contains. % gold: соррer: Pure gold is defined as having 24 carats. When mixed in an alloy, the carats of gold are given as a percentage of this value. For example, a piece of jewelry made with 50% gold has 12 carats. State the purity of this piece of red gold jewelry in carats. carats purity: PrtSc Insert De F9 F10 F11 F12 F8 F7 & Ba 5 8. Y 11 H J K MN INarrow_forward
- The equation for dilution of a solution is ?1?1=?2?2M1V1=M2V2 where ?1M1 and ?1V1 are the initial concentration and volume, respectively, and ?2M2 and ?2V2 represent the final concentration and volume, respectively. When preparing a dilute solution, it is necessary to first calculate the volume of stock solution needed. Which of the expressions is equal to the volume of stock solution, ?1?V1? A. )?1?2?2M1M2V2 B.) ?2?2?1M2V2M1 C.) ?2?1?1arrow_forwardWhat is the concentration in molarity of an aqueous solution which contains 5.21% by mass ethylene glycol (MM = 62.07 g/mol)? The density of the solution is 1.04 g/mLarrow_forwardAscorbic acid (vitamin C) is oxidized by iodine according to the equation below: 1 mol ascorbic acid + 1 mol iodine1 mol dehydroascorbic acid + 2 mol hydroiodic acid a) An iodine solution of unknown concentration is used to titrate 10.00 mL of 0.003013 M ascorbic acid. If 27.55 mL of iodine is required to reach the endpoint, what is the concentration of the iodine solution? Express as a decimal.arrow_forward
- A sample of vinaigrette salad dressing has a total mass of 188 g, a total volume of 196 cm³, and consists only of oil (density = 0.899 g/cm³) and vinegar (density 1.056 g/cm³). What is the volume of each component in this mixture? Assume that the volumes are additive. volume of oil: volume of vinegar: 3 cm cm³arrow_forwardBefore leaving the house, Ms. Maj drank 201 ml of coffee for her breakfast. Upon arriving at school, she consumed 300.562 ml of water. In the next few hours, she proceeded to drink three more 333ml cola drinks. How much liquid did Ms. Maj consume for the day?arrow_forwardcontext: the following measurements were made to determine the density of a material whos value was, according to the handbook of chemistry and physics ,1.24 g/mL Trial 1 1.20 g/mL Trial 2 1.22 g/mL Trial 3 1.22 g/mL question: what may have caused these results? ( what might be a reason of these measurements match the known value of 1.24 g/mL?)arrow_forward
- A measuring cylinder contains 50 mL of oil (insoluble in water) with a density of 1.5 g/mL. What is the new level of oil in the cylinder after 40.3 mL of water is added to it?arrow_forwardA sample of vegetable oil with density 901 kg/m³ is found to have a mass of 0.0479 kg. Find the volume of this sample. 0.05316315 volume: m3 Incorrectarrow_forwardHow many 6.60 × 10−6 m long red blood cells stack up to be the thickness of a single sheet of 1.0 × 10−4 m thick paper?arrow_forward
- College PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage LearningUniversity Physics (14th Edition)PhysicsISBN:9780133969290Author:Hugh D. Young, Roger A. FreedmanPublisher:PEARSONIntroduction To Quantum MechanicsPhysicsISBN:9781107189638Author:Griffiths, David J., Schroeter, Darrell F.Publisher:Cambridge University Press
- Physics for Scientists and EngineersPhysicsISBN:9781337553278Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningLecture- Tutorials for Introductory AstronomyPhysicsISBN:9780321820464Author:Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina BrissendenPublisher:Addison-WesleyCollege Physics: A Strategic Approach (4th Editio...PhysicsISBN:9780134609034Author:Randall D. Knight (Professor Emeritus), Brian Jones, Stuart FieldPublisher:PEARSON