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Lelu [443]
3 years ago
11

Who can help me with this

Chemistry
1 answer:
SVEN [57.7K]3 years ago
3 0
Not me but that’s wsp
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Vilka [71]

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I think No

Explanation:

7 0
2 years ago
Which situation describes a reaction with a percentage yield of 100%?
HACTEHA [7]

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Use calc to determine whether it is possible to remove 99.99% Cu2 by converting it to Cu(s) in a solution mixture containing 0.1
inessss [21]

Answer:

it is possible to remove 99.99% Cu2 by converting it to Cu(s)

Explanation:

So, from the question/problem above we are given the following ionic or REDOX equations of reactions;

Cu2+ + 2e- <--------------------------------------------------------------> Cu (s) Eo= 0.339 V

Sn2+ + 2e- <---------------------------------------------------------------> Sn (s) Eo= -0.141 V

In order to convert 99.99% Cu2 into Cu(s), the equation of reaction given below is needed:

Cu²⁺ + Sn ----------------------------------------------------------------------------> Cu + Sn²⁺.

Therefore, E°[overall] = 0.339 - [-0.141] = 0.48 V.

Therefore, the change in Gibbs' free energy, ΔG° = - nFE°. Where E° = O.48V, n= 2 and F = 96500 C.

Thus, ΔG° = - 92640.

This is less than zero[0]. Therefore,  it is possible to remove 99.99% Cu2 by converting it to Cu(s) because the reaction is a spontaneous reaction.  

7 0
3 years ago
According to the following reaction, how many moles of oxygen gas are necessary to form 0.408 moles carbon dioxide?
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2 molecules of oxygen are necessary

3 0
2 years ago
Salts usually have a low melting point true or false
antoniya [11.8K]
Hello!

This is false!! It is the other way around. They usually have a very high melting point. For example table salt is around 800deg C which is approx just under 1500deg F.

Hope this helps. Thank you
3 0
3 years ago
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