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bagirrra123 [75]
3 years ago
5

The functional groups in an organic compound can frequently be deduced from its infrare d absorption spectrum. A compound, C3H6O

2, exhibits intense absorption at 1740 cm-1, accompanied by a band at 1050 cm-1. No absorption above 3000 cm-1 is present .
What functional class(es) does the compound belong to?
List only classes for which evidence is given here. Attach no significance to evidence not cited explicitly.
Do not over-interpret exact absorption band positions. None of your inferences should depend on small differences like 10 to 20 cm-1.
The functional class(es) of this compound is(are) .(Enter letters from the table below, in any order, with no spaces or commas.)
a. alkane (List only if no other functional class applies.)
b. alkene
c. terminal alkyne
d. internal alkyne
e. arene
f. alcohol
g. ether
h. amine
i. aldehyde or ketone
j. carboxylic acid
k. ester
l. nitrile
Chemistry
1 answer:
Artyom0805 [142]3 years ago
5 0

Answer:

(b.) alkene

(i) aldehyde/ketone

(k.) ester

Explanation:

Peaks observed at:

  • 1740 cm-1 indicates the presence of a carbonyl group: C=O aldehyde, ketone, esters.
  • 1050 cm-1 shows presence of carbo bonded to electronegative elements e.g. C-N or C-O
  • 3000cm-1 is usually indicative of alcohols or carboxylic acid -OH group, which rules out those classes.

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The one on the left is pure because it is made out of one single material. The one on the right is a mixture because it is made out of multiple materials
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Which of the following would represent a single displacement reaction between Potassium Bromide (K^+Br^-) and Iodine (I), which
ra1l [238]

Answer:

Option : KBr + I -> KBr+I

Explanation:

Single-replacement reaction or single displacement reactions are a type of chemical reactions in which a whole compound reacts with an element in such a way that the element takes place of one of the compound's own elements and sets it free.

If we talk about KBr and I displacement reaction is not possible among these because Iodine is less reactive than Bromine that is why it will not react with KBr or replace Br.

                       KBr + I -> KBr+ I


Potassium Bromide + Iodine -> Potassium bromide + Iodine


Hope it help!

5 0
4 years ago
Which is not a waste product of cellular respiration heat oxygen carbon dioxide or water?
horsena [70]
Carbon Dioxide is used in celular respiration. All other choices are waste products
7 0
3 years ago
Paul added a sample of bromic acid to water and found the pOH to be 10. What is the pH of the solution?
Ket [755]

Answer:

Explanation:

pH + pOH = 14

pH + 10 = 14

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6 0
2 years ago
A metallurgist is making an alloy that consists of 325 grams of chromium (Cr) and 2.5 kg of iron (Fe). Find the total mass of th
Darya [45]

Answer:- Mass of the alloy is 2.8 kg.

Solution:- Mass of Cr in the alloy is 325 g and mass of Fe in the alloy is 2.5 kg. Mass of alloy would be the sum of masses of constituent metals.

Masses of the metals are not in the same units. So, we need to make the units equal. The want answer in kg so let's convert mass of Cr from g to kg.

Since, 1000 g = 1 kg

So, 325g\frac{1kg}{1000g}

= 0.325 kg

Mass of alloy = mass of Cr + mass of Fe

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If we consider significant figures then as per the rules, the answer should not have more than one decimal place.

So, 2.825 kg is round off to 2.8 kg and hence the mass of the alloy is 2.8 kg.

5 0
3 years ago
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