student found a bottle of unknown origin in the basement of an"CAUTION—contains С₁H₁O.” No otherAold house. The bottle was labelledinformation was given, but inside the bottle were some white crystals.The student took the bottle to a chemistry laboratory, where she analyzed thecrystals with the help of the laboratory staff. C₁2H₁6O reacted with Br₂ in CCl4adding one mole of Br, and forming C₁₂H₁OB2₂.When a sample of C₁₂H₂O was reacted with O3 followed by Zn/H₂O, twodifferent samples, J and K, were obtained. Compound J had a molecular formulaof C.HgO₂, and its NMR is shown below.Compound K had a molecular formula of C₂H₂O, and it could be oxidized tocompound L, with a molecular formula of C₂H₂O₂. The IR spectrum of L showeda very wide, strong band centred around 3000 cm*¹. The NMR spectrum of Lshowed only two different absorptions: a doublet (6H) at 0.9 ppm and a septet(1H) at 3.6 ppm. There was also a singlet (1H) off the scale at 11.8 ppm.students, deduce possible structures for J, K, and L, asAs fellowwell as for C₁2H₁6O.NMR SPECTRUM OF “J” (CÂHgO₂)109847+65+43+3+210 (ppm)

A old house. The bottle was labelled information was given, but inside the bottle were some white crystals. student found a bottle of unknown origin in the basement of an “CAUTION—contains C₁H₁O." No other 12 16 The student took the bottle to a chemistry laboratory, where she analyzed the crystals with the help of the laboratory staff. C₁H₁6O reacted with Br₂ in CCl4, adding one mole of Br, and forming C₁2H₁OB₂. 16 When a sample of C₁H₂O was reacted with O3 followed by Zn/H₂O, two 16 different samples, J and K, were obtained. Compound J had a molecular formula of CH₂O₂, and its NMR is shown below. Compour | K had a molecular formula of C₂HÃO, and it could be oxidized to compound L, with a molecular formula of C₂H§O₂. The IR spectrum of L showed a very wide, strong band centred around 3000 cm³¹. The NMR spectrum of L showed only two different absorptions: a doublet (6H) at 0.9 ppm and a septet (1H) at 3.6 ppm. There was also a singlet (1H) off the scale at 11.8 ppm. students, deduce possible structures for J, K, and L, as As fellow well as for C₂₂H₁6O. NMR SPECTRUM OF “J” (CÂHgO₂) 10 + 9 8 7 6 5 4 3 + 3 + 2 1 0 (ppm)

A old house. The bottle was labelled information was given, but inside the bottle were some white crystals. student found a bottle of unknown origin in the basement of an “CAUTION—contains C₁H₁O." No other 12 16 The student took the bottle to a chemistry laboratory, where she analyzed the crystals with the help of the laboratory staff. C₁H₁6O reacted with Br₂ in CCl4, adding one mole of Br, and forming C₁2H₁OB₂. 16 When a sample of C₁H₂O was reacted with O3 followed by Zn/H₂O, two 16 different samples, J and K, were obtained. Compound J had a molecular formula of CH₂O₂, and its NMR is shown below. Compour | K had a molecular formula of C₂HÃO, and it could be oxidized to compound L, with a molecular formula of C₂H§O₂. The IR spectrum of L showed a very wide, strong band centred around 3000 cm³¹. The NMR spectrum of L showed only two different absorptions: a doublet (6H) at 0.9 ppm and a septet (1H) at 3.6 ppm. There was also a singlet (1H) off the scale at 11.8 ppm. students, deduce possible structures for J, K, and L, as As fellow well as for C₂₂H₁6O. NMR SPECTRUM OF “J” (CÂHgO₂) 10 + 9 8 7 6 5 4 3 + 3 + 2 1 0 (ppm)

Chemistry: Principles and Reactions

8th Edition

ISBN:9781305079373

Author:William L. Masterton, Cecile N. Hurley

Publisher:William L. Masterton, Cecile N. Hurley

Chapter18: Nuclear Reactions

Section: Chapter Questions

Problem 82QAP

See similar textbooks

Similar questions

Dinitrogen trioxide, N2O3, is largely dissociated into NO and NO2 in the gas phase where there exists the equilibrium, N2O3 = NO + NO2 In an effort to determine the structure of N2O3, a mixture of NO and "NO2 was prepared containing isotopically labeled N in the NO2. After a period of time the mixture was analyzed and found to contain substantial amounts of both *NO and *NO2. Explain how this is consistent with the structure of N2O3 being ÔNONO. Because this is an equilibrium process, there is a change that either the forward or the reverse reactions will occur. As NO reacts with NO2 we form This compound can decompose and give either NO2 and and "NO2. or After sufficient time, v will be present in the mixture. both "NO and NO Attempts: 0 of 3 used Submit Answer Save for Later only *NO only NO
131| is a B-emitter (half-life = 8.040 days) used in medicine for the diagnosis and treatment of thyroid cancer. Starting with a 2.05 mg sample, what % is left after 16 days? 25% 75% ~0%
omework Chapter X OWLV2 | Online teaching and le X keAssignment/takeCovalentActivity.do?locator=assignment-take [Review Topics] [References] Some Radioactive Isotopes Useful in Medical Imaging Mode of Isotope Decay Half-life Use in Medical Imaging B+, Y B+, Y Brain scan to trace glucose metabolism Brain scan to trace glucose metabolism Detect eye tumors Diagnose albinism, image the spleen and gastrointestinal tract Bone marrow function, diagnose anemias Whole-body scan for tumors Pancreas scan Lung ventilation scan Scan for bone diseases, including cancer Brain, liver, kidney, bone scans; diagnosis of damaged heart muscle Diagnosis of thyroid malfunction Kidney scan Heart scan and exercise stress test 20.3 m Carbon-11 Fluorine-18 Phosphorus-32 Chromium-51 Iron-59 Gallium-67 Selenium-75 F 109 m. 14.3 d E.C., Y Cr SFe SGa Se 27.7 d B, Y E.C., y E.C., y 44.5 d 26 78.3 h 750 118 d Krypton-81m Strontium-81 Technetium-99m Iodine-131 13.3 s 36Ar 81ST 38 22.2 m 99m 6.01 h 8.04 d 53 197 80 20…
ter Community College + 3k2SOu How mony g of Nizlso.). are fraduct f 19. 95 NYNG, reacts!
Find the binding energy (BE) in MeV of ordinary helium (4He2), for which M=4.002603. Is the reaction endothermic or exothermic? Why?
In the present geological period rubidium contains 27 wt % 87Rb, which is a 3 emitter with a decay constant of 1.1 x 10-11 y-¹. In 30 g of the mineral pollucite from Varuträsk in northern Sweden, 450 mg Rb and 0.90 mg Sr was found on analysis. It was shown with a mass spectrometer that 80% of this Sr was 87 Sr, which had presumably been formed from Rb. Calculate the age of the mineral in years.
An atomic isotope radioactively decays and has a half-life of 23.7 days. How many days will it take for 88.2% of the sample to decay? In([A]MA]) = -kt t1/2 = (In2/k) 券 (1/[A]) = kt + (1/AI,) t1/2 (1/k[A],) [A]=-kt + [Alo t1/2 = ([A]/2k) In(k2/kq) = (E/R)[(1/T;)- (1/T2)] R= 0.0820573L atm/(K mol) उस R = 8.31446 J 7(K mol) Type your answer in the space below without the units.
Write balanced equations for each of the processes described below. (Use the lowest possible coefficients. Omit states-of-matter.) (a) Chromium-51, which targets the spleen and is used as a tracer in studies of red blood cells, decays by electron capture. Help chemPad XXº (b) Iodine-131, used to treat hyperactive thyroid glands, decays by producing a ß particle. Help chemPad XX→→ Greek chemPad X₁X² → Greek (c) Phosphorus-32, which accumulates in the liver, decays by ß-particle production. Help Greek
← X A ALEKS - Tanvi Damle - Learn X 505 Missing Women.pdf xb Answered: A mixture of gaseou x | + с www-awu.aleks.com/alekscgi/x/lsl.exe/1o_u-lgNslkr7j8P3jH-lJjnzw4vpUz2lYCcR4NM7yr_lpMriNwxObE81fpfEarvknu9yVpdR16koytlCYH-ZAJTB3axbOp6jJjf_zb7sl8YueB... THERMOCHEMISTRY = 1/3 Tanvi V Understanding the definitions of heat and work 1 atm pressure A mixture of gaseous reactants is put into a cylinder, where a chemical reaction turns them into gaseous products. The cylinder has a piston that moves in or out, as necessary, to keep a constant pressure on the mixture of 1 atm. The cylinder is also submerged in a large insulated water bath. (See sketch at right.) From previous experiments, this chemical reaction is known to absorb 298. kJ of energy. gases The position of the piston is monitored, and it is determined from this data that the piston does 212. kJ of work on the system during the reaction. Is the reaction exothermic or endothermic? exothermic endothermic x10 up down X Does the…
20.90 In a certain photochemical reaction using 464-nm radi- ation, the incident-light power was 0.00155 W and the system absorbed 74.4% of the incident light; 6.80 × 10-6 mole of product was produced during an exposure of 110 s. Find the quantum yield.
What is the half-life of N2O5 at 70∘C? Express the half-life in seconds to three significant digits.
Given that the ratio between U235 and Pb207 analyzed from the igneous intrusion (K) is 1:3 and half-life of the dating method is 713 million years. How old is the granite?