Chemistry Atoms First2e
2nd Edition
ISBN: 9781947172647
Author: OpenStax
Publisher: OpenStax College
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Textbook Question
Chapter 20, Problem 36E
The isotope
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Question 11 of 18 (1 point) Question Attempt: 3 of
How many signals do you expect in the 'H NMR spectrum for this molecule?
Br
Br
Write the answer below.
Also, in each of the drawing areas below is a copy of the molecule, with Hs shown. In each copy, one of the H atoms is colored red. Highlight in red all other H
atoms that would contribute to the same signal as the H already highlighted red.
Note for advanced students: In this question, any multiplet is counted as one signal.
Number of signals in the 'H NMR spectrum.
1
For the molecule in the top drawing area, highlight in red any other H atoms that will contribute to
the same signal as the H atom already highlighted red.
If no other H atoms will contribute, check the box at right.
No additional Hs to color in top
molecule
Check
For the molecule in the bottom drawing area, highlight in red any other H atoms that will contribute
to the same signal as the H atom already highlighted red.
If no other H atoms will contribute, check the box…
Organic Chemistry
Esterification reactions
1. Write the steps to prepare ester.
2. Write complete reaction of ethanol and acetic acid to make ester.
3. What does ester smell like? What are the uses of ester.
4. What the role of sulfuric acid in the esterification reaction
11. Complete the following esterification reaction with names of all the reactants and products under.
Hint: Remove the water and end up with ester
R-C-OH + ROH
R-C-OR + H₂O
A carboxylic acid
An alcohol
An ester
Water
BYJU'S
H-C-C
O-H
Нин
C-C-C-H
HAAA
H O-C-C-C-H
AAA
Ethanoic acid
Propanol
Water Propyl ethanoate
By com
CH3COOH + CH3CH2CH2CH₂CH₂OH →
Practice for alcohols aldehydes and ketones:
12. Draw the structures from the following names mixed of alcohol/aldehyde and ketone:
a. 4-methyl cyclohexanone
b. 3-methyl-2-pentenal
c. 2,3-dimethylcyclohexanone
d. 1,3propanediol or Propane 1,3 diol
13. Write systematic names for the following compounds identify
functional group:
a.
b. (CH3)2CH-C
OH
c) CH(CH₂)--
OH
-,-,
Chapter 20 Solutions
Chemistry Atoms First2e
Ch. 20 - Write the following isotopes in hyphenated form...Ch. 20 - Write the following isotopes in nuclide notation...Ch. 20 - For the following isotopes that have missing...Ch. 20 - For each of the isotopes in Exercise 20.1,...Ch. 20 - Write the nuclide notation, including charge if...Ch. 20 - Calculate the density of the M1224g nucleus in...Ch. 20 - What are the two principal differences between...Ch. 20 - The mass of the atom N1123a is 22.9893 arm.. (a)...Ch. 20 - Which of the following nuclei lie within the band...Ch. 20 - Which of the following nuclei lie within the band...
Ch. 20 - Write a brief description or definition of each of...Ch. 20 - Which of the various particles ( particles, ...Ch. 20 - Complete each of the following equations by adding...Ch. 20 - Complete each 0f the following equations: (a)...Ch. 20 - Write a balanced equation for each of the...Ch. 20 - Technetium-99 is prepared from 98Mo. Molybdenum-SS...Ch. 20 - The mass of the atom F919 is 18.99840 amu.. (a)...Ch. 20 - For the reaction C614N714+?, if 100.0 g of carbon...Ch. 20 - What are the types of radiation emitted by the...Ch. 20 - That changes occur to the atomic number and mass...Ch. 20 - What is the change in the nucleus that results...Ch. 20 - Many nuclides with atomic numbers greater than 83...Ch. 20 - Why is electron capture accompanied by the...Ch. 20 - Explain, in terms of Figure 20.2, how unstable...Ch. 20 - Which of the following nuclei is most likely to...Ch. 20 - The following nuclei do not lie in the band of...Ch. 20 - The following nuclei do not lie in the band of...Ch. 20 - Predict by what mode(s) of spontaneous radioactive...Ch. 20 - Write a nuclear reaction for each step in the...Ch. 20 - Write a nuclear reaction for each step in the...Ch. 20 - Define the term half-life and illustrate it with...Ch. 20 - A 1.00106 -g sample of nobelium, N102254o, has a...Ch. 20 - 239Pu is a nuclear waste byproduct with a...Ch. 20 - The isotope 208Tl undergoes decay with a...Ch. 20 - If 1.000 g of R88226a produces 0.0001 mL of the...Ch. 20 - The isotope S3890r one of the extremely hazardous...Ch. 20 - Technetium-99 is often used for assessing heart,...Ch. 20 - What is the age of mummified primate skin that...Ch. 20 - A sample of rock was found to contain 8.23 mg of...Ch. 20 - A laboratory investigation shows that a sample of...Ch. 20 - Plutonium was detected in trace amounts in natural...Ch. 20 - A B47e atom (mass = 7.0169 amu) decays into a L37i...Ch. 20 - A B58 atom (mass = 8.0246 amu) decays into B48...Ch. 20 - Isotopes such as 26Al (half-life: 7.2105 years)...Ch. 20 - Write a balanced equation for each of the...Ch. 20 - Write a balanced equation for each of the...Ch. 20 - Write the balanced nuclear equation for the...Ch. 20 - How does nuclear fission differ from nuclear...Ch. 20 - Both fusion and fission are nuclear reactions. Why...Ch. 20 - Cite the conditions necessary for a nuclear chain...Ch. 20 - Describe the components of a nuclear reactor.Ch. 20 - In usual practice, both a moderator and control...Ch. 20 - Describe how the potential energy of uranium is...Ch. 20 - The mass of a hydrogen atom (11H) is 1.007825 arm;...Ch. 20 - How can a radioactive nuclide be used to show that...Ch. 20 - Technetium-99m has a half-life of 6.01 hours. If a...Ch. 20 - Iodine that enters the body is stored in the...Ch. 20 - If a hospital were storing radioisotopes, what is...Ch. 20 - Based on what is known about Radon-222’s primary...Ch. 20 - Given specimens uranium-232 (t1/2=68.9y) and...Ch. 20 - A scientist is studying a 2.234 g sample of...Ch. 20 - Given specimens neon-24 (t1/2=3.38min) and...
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- may you please show all steps! i am having a hard time understanding and applying in this format, thank you!arrow_forward10. Complete the substitution reaction of 2 pentanol with these reagents. Reagents & Reaction Conditions use practice sheet. Please write only major products, minor product like water, other gases are not required. Hint: In substitution of alcohol, we generally substitute OH group with Halogens like cl, Br, F using some reagent containing halogens. Ensure to add halogens to the same carbon number where you are removing OH from Examples Alcohols can be converted to Alkyl Halides with HX acids HBr H₂O HCI + H₂O HI + H₂O CH,CH₂OH + SOCI₂ CH,CH₂OH + PCI₁₂ A BBYJU'S CH CHCI + SO₂+ HCI CH₂CH CIP(OH), + HCI CH,CH₂OH + PCI CHCHCI + POCI + HCI CH,CH₂OH + PBr, CH,CH,Br + P(OH), + HBr 1. Reaction with HBr with 2 Pentanol 2.Reaction with HI with 2 pentanol © Byjus.com 3.Reaction with HCI+ZnCl,, with 2 pentanol (Zncl2 is catalyst no role) 4.Reaction with SOCI,, with 2 Pentanol 5.Reaction with PBr; or PCl, with 2 pentanolarrow_forward3. Is 2-methyl-2-propanol a primary, secondary, or tertiary alcohol? Write out the structures of 2-methyl-2-propanol and also any oxidation products of 2- methyl-2- propanol. If there is more than one oxidation product, give the structure of each of the products. 4. 2-Propanol is the IUPAC systematic name of this alcohol. It has a common name by which it is much better known (You'll see it in the grocery store or pharmacy). Give that common name 5. Aldehydes can be synthesized by the oxidation of. Please choose from below choices A. Primary alcohols B. Secondary alcohols C. Organic acids D. Inorganic acids 6. Tertiary alcohol Can undergo oxidation. yes or no. ? If yes then answer the product.arrow_forward
- Finish the reactions hand written pleasearrow_forwardPart A Identify each alcohol as primary, secondary, or tertiary Drag the appropriate items to their respective bins. CH₂ H₂C- -C-OH HO CH₂ Primary Он OH CH₂ OH CCH₂OH CH₂ сн Secondary Tertiary Reset Help CH,CH₂ (CH)CHCH,OH CH,CH,CH,CCH, CHOH CH₂ Different types of alcohol groups Alcohol and its reaction: 8. Combing two alcohol molecules below and completing the reaction with Product .( Hint Reaction called etherification as ether is formed and name the ether once you complete the reaction. Hint.: R-O-H+H-O-RR-O-R Do the reaction: CH₂OH + CH₂OH---→ + H-O-H 9. Write the reaction of formation of alcohol from alkene by adding water: Addition reaction also called hydration reaction as we are adding water which occur always in presence of acid Hint: Break the double bond and add H and OH if symmetrical then add anywhere if unsymmetrical then follow Markovnikov rule H should go to that double bone carbon which has more hydrogen CH2=CH2 + H₂O-→arrow_forwardComplete the reaction hand written pleasearrow_forward
- Predict the major products of this organic reaction: HBr (1 equiv) cold ? Some important notes: • Draw the major product, or products, of this reaction in the drawing area below. • You can draw the products in any arrangement you like. • Pay careful attention to the reaction conditions, and only include the major products. • Be sure to use wedge and dash bonds when necessary, for example to distinguish between major products that are enantiomers. • Note that there is only 1 equivalent of HBr reactant, so you need not consider the case of multiple additions. dm Re Explanation Check ©2025 McGraw Hill LLC. All Rights Reserved. Termarrow_forwardb) Use curved arrows to show the reaction of the radical with hydrogen bromide. Br: Br H .. Answer Bankarrow_forwardIndicate the reaction products when CH3COCH2COOCH2COOC2H5 (ethyl acetoacetoacetate) reacts with 1º OH-/H2O and 2º H3O+arrow_forward
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