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VikaD [51]
3 years ago
7

Which of the following terms is NOT the name of the body system pictured above?

Chemistry
1 answer:
Ugo [173]3 years ago
3 0

Answer:

Can you provide a picture?

Explanation:

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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
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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.  

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3 years ago
A certain compound is made up of one phosphorus (P) atom, three fluorine (F) atoms, and one oxygen (O) atom. What is the chemica
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PF_{3}O
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Give the name of the following molecule. A compound with a total of 10 carbons with one double bond and the rest single bonds. T
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Answer:
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Explanation:

First of all draw a straight chain of 8 carbon atoms.

Make a double bond between carbon number 6 and 7 numbering from left.

Add ethyl group at position 3 starting from left.

The structure sketched is attached below,

According to rules the longest chain containing a double bond is selected. Numbering is started from the end to which double bond is nearer. So, in our case the double bond starts at carbon 2, hence parent name of compound is 2-Octene. Then the substituent at position 6 is named.

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An indicator shows where the endpoint of a titration is.  Different indicators will change colors at different equivalence points.  Phenolphthalein will change colors at around pH7.5 or so, and others like Methylene Blue will change around a pH of 6.  Different titrations will have different pH's at different equivalence points.
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