4 Following is the mass spectrum of 1,2-dichloroethane. Propose a structural formula for the cation of m/2 63.2100806040-20.01020304050606224m/z. In cases where there is more than one answer, just draw one.You do not have to include radical electrons in your answer.• Cl can represent either 35Cl or 37C.• Br can represent either 79Br or 818r.7080M (98) 1009099H₂C-CH₂MW-98Spectra images are reproduced by permission from Sigma-Aldrich and the National Institute of Advanced Industrial Science and Technology (Sonsweb: http://mob01buse antodb. 11/26/052/7/09, 2/13/09, 3/10/09)100 110 120

Following is the mass spectrum of 1,2-dichloroethane. Propose a structural formula for the cation of m/2 63. X? D 100- 80- 60- 40- 20 10 20 60 m/2 . CI can represent either or C • Br can represent either 79Br or 18 . In cases where there is more than one answer, just draw one You do not have to include radical electrons in your answer. 70 MO 100 99 H₂C-CH₂ MW-98 Spectrs images are reproduced by permission from Signa-Aldrich and the National Institute of Advanced Industrial Science and Technology (Soesweb 2/7/09, 2/23/09, 3/10/09) 100 110 120 1.00, 8/26/S

Following is the mass spectrum of 1,2-dichloroethane. Propose a structural formula for the cation of m/2 63. X? D 100- 80- 60- 40- 20 10 20 60 m/2 . CI can represent either or C • Br can represent either 79Br or 18 . In cases where there is more than one answer, just draw one You do not have to include radical electrons in your answer. 70 MO 100 99 H₂C-CH₂ MW-98 Spectrs images are reproduced by permission from Signa-Aldrich and the National Institute of Advanced Industrial Science and Technology (Soesweb 2/7/09, 2/23/09, 3/10/09) 100 110 120 1.00, 8/26/S

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...

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03 Multiple Choice 0/1 What charge would exist on chlorine (#17) after it reacts with a rubidium atom (#37)? 2.20 5 6. 7 8 6. 3 4. B Li Be 2.04 2.55 3.04 3.44 3.98 0.98 1.57 Pauling Electronegativity Values 15 16 17 13 Al 14 11 12 CI 1.90 2.19 2.58 3.16 Si Na Mg 1.61 0.93 1.31 22 23 24 25 26 27 28 29 30 31 32 33 34 35 19 20 21 Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Ti V Sc 0.82 1.00 1.36 K Ca 1.91 1.90 1.65 1.81 2.01 2.18 2.55 2.96 1.54 1.63 1.66 1.55 1.83 1.88 43 44 45 46 47 48 49 50 51 52 53 37 38 39 40 41 42 Cd In Sn Sb Te Ag 2.28 2.20 1.93 Rb Sr Y Zr Nb Mo Tc Ru Rh Pd 1.69 1.78 1.96 2.05 2.1 2.66 0.82 0.95 1.22 1.33 1.6 2.16 1.9 2.2 76 77 78 79 80 81 82 83 84 85 55 56 57 72 73 74 75 Bi Po At Re Os Ir Pt Au Hg Ti Pb Ba La Hf Ta Cs 0.79 0.89 2.2 2.20 2.28 2.54 2.00 1.62 2.33 2.02 2.0 2.2 1.1 1.3 1.5 2.36 1.9 87 88 Fr Ra 0.7 0.9 Fully positive
(3)
A student was able to separate the three components of a mixture via liquid chromatography. She obtained 1.27 g1.27 g of component A, 0.950 g0.950 g of component B, and 0.260 g0.260 g of component C. Determine the mass percent of each of the three components in the mixture.
Describe each of the following figures: H please solve parts a and b H H H H H H H H H C-CIC H 1 C==C 1 1 H H (a) (b) FIGURE 2.1 (a) The monomer ethylene and (b) the polymer PE. -C (b) 1 1 T HH HH -M-M-M-M-M-M-M-M-M- -M-L-M-L-M-L-M-L-M- (c) 1 T H H H -L-M-M-L-M-L-L-M-M- с C- 1 T HH u -M-M-M-L-L-L-M-M-M- Amorphous regions (d) FIGURE 2.2 Copolymers made with different structures. L and M are any monomers. (a) Linear polymer, (b) alternating copolymer, (c) random copolymer and (d) block copolymer. w Crystallites www FIGURE 2.4 Schematic diagram of the amorphous (unordered) and crystalline (ordered) regions of a semi- crystalline polymer.
3 نقاط .Titrant is usually in In a conical flask. In beaker. In buret.
What is the following and what are the organic molecules? H H H H H C C (3 lines) C C C C H H H H H
The EPA has set a limit for uranium in drinking water at 30 micrograms per Liter. This corresponds to a mass concentration of 30ppb. What is the tolerable limit of uranium (in grams) associated with 2.50 kg of water.
= (1) H H H H (2) (3)
Q5. As part of the aspirin synthesis lab, the orgo students also had to perform the following calculation to demonstrate their knowledge. Are you able to help them work this out?Saponification is a process in which soap is produced from the chemical reaction between animal fat (triglycerides) and a strong base such as NaOH. An example of such a balanced chemical reaction is shown here:C57H110O6 + 3NaOH à C3H5(OH)3 + 3C18H35O2NaIf, during the saponification reaction, 228.5 g of C57H110O6 is mixed with 211.7 g of NaOH and 180 g of soap is produced: a. Calculate the theoretical yield of soap (in grams), C18H35O2Na, and indicate which species is the limiting reactant. Provide your answer to 2 decimal places. b. Calculate the percent yield for this reaction. Provide your answer to 1 decimal place. Show ALL steps and equations involved in your calculations. Remember to label all steps clearly and use appropriate units
2. A plant discharges 4000 gal/min of treated wastewater that contains 0.25 mg/L of PCBS (polychloronated biphenyls) into a river that contains no measurable PCBS upstream of the discharge. If the river flow is 1500 cubic ft/s, after the discharge was thoroughly mixed with the river water, what is the concentration of PCBS in the river in milligrams per liter?
Please do not answer numbers 2 and 3
24 25 26 A chemistry student weighs out 0.0202 g of acrylic acid (HCH,CHCO,) into a 250. mL volumetric flask and dilutes to the mark with distilled water. He plans to titrate the acid with 0.1800M NAOH solution. Calculate the volume of NaOH solution the student will need to add to reach the equivalence point. Round your answer to 3 significant digits. mL x10 Continue Submit Assignment 2021 McGraw Hill LLC. All Rights Reserved. Terms of Use Privacy Center | Accessibility C 80 000 000 F1 F2 DII DD F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 @ 2$4 % &