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Gnom [1K]
3 years ago
8

Show a numerical setup for calculating the percent by mass of NaCl in the solution in beaker 4.

Chemistry
2 answers:
Sedaia [141]3 years ago
8 0
Let's think about the solution first: it's composed of water (100 g) and 35.04 grams of NaCl  (in beaker for)

together it's 100+35.04=135.04

and NaCl in this solution is 35.04/135.04=25.95.

So the answer is 25.95
Over [174]3 years ago
6 0
Mass Percentage Definition. Mass percentage is one way of representing the concentration of an element in a compound or a component in a mixture. Mass percentage is calculated as the mass of a component divided by the total mass of the mixture, multiplied by 100%<span>.
% mass = [( 35.04) / ( 100 + 35.04)] * 100
% mass = 25.95 %</span>
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mrs_skeptik [129]

Answer:

a) Watch the attaccment

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c) t-butyl bromide is more reactive than  isopropyl bromide, and this more than ethyl bromide. t-butyl bromide structure stabilize the carbocation, better than the others.

Explanation:

Speed of SN2 reactions depends on steric hindrance, the less hindrance, the most reaction speed, meaning more reactivity. Then, those linear structures are more reactive to SN2 reactions.

In the other hand, speed of SN1 reactions depends on the stability of the carbocation formed. Structure with ramifications can stabilize better the carbocation, these structures are more reactive to SN1 reactions.

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7 0
4 years ago
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velikii [3]

Answer:

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4 0
3 years ago
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Answer:

B

Explanation:

distance = speed x time

therefore your answer is B

hope this helped have a good day bro cya)

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