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3 years ago

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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3 years ago

What is the final concentration if a 50.0 mL sample of a 15% H2SO4 solution is added to water to give a final volume of 250 mL?

Anna007 [38]

Answer:

The answer to your question is 3% H2SO4 solution

Explanation:

Data

Concentration 2 = C₂ = ?

Concentration 1 = C₁ = 15 %

Volume 1 = V₁ = 50 ml

Volume 2 = V₂ = 250 ml

Formula

C₁V₁ = C₂V₂

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C₂ = C₁V₁ / V₂

Substitution

C₂ = (15)(50) / 250

Simplification and result

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3 years ago