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Sindrei [870]
3 years ago
15

Good morning my friend please follow me​

Chemistry
1 answer:
Anna35 [415]3 years ago
7 0
It’s night for me :D
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Which of the following compounds has the most deshielded protons?A) CH3ClB) CH3IC) CH3BrD) CH4
Korolek [52]

Given :

Some compounds :

A)\ CH_3Cl\ B)\ CH_3I\ C)\ CH_3Br\ D)\ CH_4 .

To Find :

Which of the following compounds has the most deshielded protons .

Solution :

Deshielded means nucleus whose chemical shift has been increased due to removal of electron density, magnetic induction, or other effects .

In simple words deshielding means the ability to shift protons .

Now , among Cl , I , Br and H . Cl is the most electron negative .

Therefore , deshielding will be more in CH_3Cl .

Hence , this is the required solution .

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Explanation:

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If one mole of a substance has a mass of 56.0 g, what is the mass of 11 nanomoles of the substance? Express your answer in nanog
9966 [12]

Answer:

616,0 ng is the right answer.

Explanation:

You should know that 1 mole = 1 .10^9 nanomoles

Get the rule of three.

1 .10^9 nanomoles ...................... 56.0 gr

11 nanomoles .....................

(11 x 56) / 1 .10^9 nanomoles = 6.16 x 10^-7 gr

Let's convert

6.16 x 10^-7 gr x 1 .10^9 = 616 ngr

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The smallest particle of an element is a(n) .<br>atom<br>molecule<br>DNA​
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An atom is the smallest particle of an element

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