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scoundrel [369]
3 years ago
10

The standard cell potential for a reaction in an electrolytic cell is always:_____

Chemistry
1 answer:
GuDViN [60]3 years ago
7 0

Answer:

The correct answer is <em>b. Negative</em>

Explanation:

An electrolytic cell is based on a reduction- oxidation reaction which is non spontaneous. That means that the standard cell potencial (Eº) is negative. For this reason, an electrical potential must be applied in order to force the reaction. Conversely, a galvanic cell is based on a spontaneous redox reaction, so the galvanic cell produces electrical energy.

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What is the empirical formula for C2H4S2?
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Answer:

46

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How many grams of oxygen would be needed to completely react with 18 grams of methane (CH4)?
S_A_V [24]

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6 0
3 years ago
A
Artemon [7]

Answer:

9.8ms^{-2}

Explanation:

using the equation :

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3 0
2 years ago
A sealed 1.0L flask is filled with 0.500 mols of I_2 and 0.500 mols of Br_2. When the container achieves equilibrium the equilib
DochEvi [55]

Answer:

[IBr] = 0.049 M.

Explanation:

Hello there!

In this case, according to the balanced chemical reaction:

I_2+Br_2\rightarrow 2IBr

It is possible to set up the following equilibrium expression:

K=\frac{[IBr]^2}{[I_2][Br_2]} =0.0110

Whereas the the initial concentrations of both iodine and bromine are 0.50 M; and in terms of x (reaction extent) would be:

0.0110=\frac{(2x)^2}{(0.50-x)^2}

Which can be solved for x to obtain two possible results:

x_1=-0.0277M\\\\x_2=0.0245M

Whereas the correct result is 0.0245 M since negative results does not make any sense. Thus, the concentration of the product turns out:

[IBr]=2x=2*0.0249M=0.049M

Regards!

7 0
2 years ago
Which number represents an acidic pH, 4 or 9?
Leno4ka [110]

Answer:

pH 4 represents an acidic

5 0
3 years ago
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