1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
scoundrel [369]
3 years ago
11

Which statements about isomers are true? Check all that apply. (6 pt) a) Enantiomers have the same molecular formula. b) Enantio

mers are not mirror images of each other that can be superimposed. c) In the ranking of functional groups, alcohols rank above carboxylic acids. d) The R-isomer of a molecule shows an optical rotation of -9°. Its enantiomer shows +9°. e) A molecule with three chiral centers can potentially have nine stereoisomers. f) Meso tartaric acid has the same melting point as its diastere
Chemistry
1 answer:
vlada-n [284]3 years ago
5 0

Answer:

a) TRUE

b) FALSE

c) FALSE

d) TRUE

e) FALSE

f) FALSE

Explanation:

a) Enantiomers have the same molecular formula. TRUE. Because defintion of enantiomer is: One of the two molecules that are mirror images of each other and are non-superposable. To be mirror image must have the same molecular formula.

b) Enantiomers are not mirror images of each other that can be superimposed. FALSE. That is the negation of the enantiomer definition.

c) In the ranking of functional groups, alcohols rank above carboxylic acids. FALSE. In Cahn-Ingold-Prelog rules, carbon of carboxylic acid is bonded with two oxygens but in alcohols is bonded with just one oxygen.

d) The R-isomer of a molecule shows an optical rotation of -9°. Its enantiomer shows +9°. TRUE. One way to differentiate R- S-isomers is with optical rotation. The rotation of R-isomer will be the negative of S-isomer

e) A molecule with three chiral centers can potentially have nine stereoisomers. FALSE. The usual number of isomers is 2ⁿ where n is number of chiral centers. With three chiral centers number is stereoisomers is 8.

f) Meso tartaric acid has the same melting point as its diastere. FALSE. Diastereoisomers have different physical and chemical properties.

I hope it helps!

You might be interested in
What are fossils?
siniylev [52]

answer: C

Explanation:

They are remains that are in rock

5 0
4 years ago
Read 2 more answers
Two aqueous solutions are both at room temperature and are then mixed in a coffee cup calorimeter. The reaction causes the tempe
sergiy2304 [10]

Answer:

E. None of the above statements are true.

Explanation:

3 0
4 years ago
The weight of the body decrease inside water why?​
Lady_Fox [76]

Penurunan atau kehilangan massa otot bisa menimbulkan penurunan berat badan yang tidak direncanakan

3 0
3 years ago
Proton-alpha: "One time I lived in an environment where next door lived identical twins, Proton-beta-1 and Proton-beta-2. Boy, d
Mashcka [7]

Answer:

Explanation:

C) What is the multiplicity of Proton-alpha's signal in this scenario when there are 2 identical protons "next door"?

Based on n+1 rule. Here n=2 (identical beta protons).

2+1=3

So the multiplicity of alpha proton is triplet, .

D) For molecules containing only single bonds (we'll discuss the influence of double bonds in a future lecture), what is the adjective that describes the position of protons that split a "next door neighbor's" signal?

    The meaning of the adjective is this: the multiplicity of beta protons is singlet only (no spliting) in absence of alpha proton . But beta protons splits as doublet (n=1) in the presence of alpha proton,

E) How many bonds connect these "splitting next door neighbors"?

There are 3 bonds in between alpha and beta protons in a molecule.

F) What is the multiplicity of the Proton-betas' signal?

Following the  n+1 rule, here n=1 (1 alpha proton) so 1+1=2. Hence it is  a doublet.

7 0
4 years ago
What is Copper (II) Oxide balanced
ikadub [295]
Copper(II) oxide or cupric oxide is the inorganic compound with the formula CuO. A black solid, it is one of the two stable oxides of copper, the other being Cu2O or cuprous oxide. As a mineral, it is known as tenorite. It is a product of copper mining and the precursor to many other copper-containing products and chemical compounds
5 0
3 years ago
Other questions:
  • Change 6.54 moles of iron (III) sulfide to grams.
    12·1 answer
  • Which of the following will ammonium ion form an insoluble salt? 4/16 a. chloride b. sulfate c. sulfate and carbonate d. carbona
    11·1 answer
  • Calculate the density of an object with a mass of 220 and a volume of 145mL.
    14·1 answer
  • What is group 18 of the periodic table called?
    14·2 answers
  • The
    15·1 answer
  • Compare these examples of matter. Which of these is a pure substance and why? A Milk, because every portion of the matter is the
    9·1 answer
  • Balance the following equation:<br> B203(s) + HF(l) =&gt; BF3(g) + H20(l)
    8·1 answer
  • 1. Graph a wave with an
    10·1 answer
  • HURRY PLS HELP
    8·1 answer
  • A teacher has found two white powders on a desk in the chemistry laboratory. she wants to test to see if they are pure substance
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!