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S_A_V [24]
2 years ago
13

Hypothesis and Observations

Chemistry
1 answer:
KATRIN_1 [288]2 years ago
8 0

Answer:

his experiment can show the movement of pollutants through the groundwater!

Explanation:

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stearic acid and linoleic acid stearic acid and linoleic acid stearic acid has the higher melting point, because it has two more
elena55 [62]

Acid palmitic acid has higher melting point, because it has two more methylene groups.

\text { Myristic acid } \rightarrow \mathrm{CH}_3\left(\mathrm{CH}_2\right)_{12} \mathrm{COOH} \\& \text { Palmitic acid } \rightarrow \mathrm{CH}_3\left(\mathrm{CH}_2\right)_{14} \mathrm{COOH} \\

Acid palmitic acid has higher melting point, because it has two more methylene groups.

Giving it a greater surface area and therefore more intermolecular  van der waals interact than the myristic acid.

stearic arid \mathrm{CH}_3\left(\mathrm{CH}_2\right)_{16} \mathrm{COOH}

linoleic acid \mathrm{C}_{18} \mathrm{H}_{32} \mathrm{O}_2 (two double bond)

Stearic acid has higher Melting point, because it does not have any Carbon-Carbon double bonds, whereas linoleic acid has two cis double bonds which prevent the molecules from packing closely together.

Oleic Acid and Linoleic acid.

\mathrm{C}_{18} \mathrm{H}_{34} \mathrm{O}_2-one double bond (cis)

Acid palmitic acid has higher melting point, because it has two more methylene groups.

For more such question on methylene group.

brainly.com/question/4279223

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4 0
11 months ago
Why is it necessary to cool a hot , supersaturated solution slowly during a recrystallization?
MariettaO [177]

Answer:

This is because, the is less chance of trapping impurities in the developing crystal lattice

7 0
2 years ago
Read 2 more answers
Select all the correct answers.
Brut [27]

Hi!


The reason for reviewing and replicating work of other scientists is influenced by two factors listed in the answer:

1. An experiment may have had errors that the scientist did not recognize. <u>(unintentional) </u>

2. The results of individual scientists may be influenced by bias. <u>(intentional)</u>

<em>Personal motivations may often influence a scientist to manipulate the results to best suit his/her hypothesis, consequently leading to scientific fraud. </em>

While other options listed are elements of the scientific method, they are not the reasons behind the review and replication of a scientist's work by others.


5 0
2 years ago
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How much of a 0.74mg sample of uranium-235 will remain after 2.8x10^9
ankoles [38]
Of Uranium-235 remains after 2.8 x 10^9 years, what was the original mass of the sample of Uranium-235? The half-life of Uranium-235 is 7.0 x 10^8 years. Uranium-232 has a half life of 68.8 years.
5 0
2 years ago
Which of the following is not a sub-atomic particle?
Sidana [21]
The correct answer is Nucleus.


I hope that helps! c:
7 0
3 years ago
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