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Mashutka [201]
3 years ago
10

In the summer of 1859, Edwin Drake became the first person to strike oil in the United States while drilling in Titusville,_____

.
A. Alaska
B. California
C. Pennsylvania
D. Texas
Chemistry
2 answers:
Nata [24]3 years ago
7 0
C.Pennsylvania Titusville is in the state of Pennsylvania
UNO [17]3 years ago
5 0
C. Titusville Pennsylvania
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Be sure to answer all parts. A concentration cell consists of two Sn/Sn2+ half-cells. The electrolyte in compartment A is 0.23 M
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Answer:

Part A. The half-cell B is the cathode and the half-cell A is the anode

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Explanation:

Part A

The electrons must go from the anode to the cathode. At the anode oxidation takes place, and at the cathode a reduction, so the flow of electrons must go from the less concentrated solution to the most one (at oxidation the concentration intends to increase, and at the reduction, the concentration intends to decrease).

So, the half-cell B is the cathode and the half-cell A is the anode.

Part B

By the Nersnt equation:

E°cell = E° - (0.0592/n)*log[anode]/[cathode]

Where n is the number of electrons being changed in the reaction, in this case, n = 2 (Sn goes from S⁺²). Because the half-reactions are the same, the reduction potential of the anode is equal to the cathode, and E° = 0 V.

E°cell = 0 - (0.0592/2)*log(0.23/0.87)

E°cell = 0.017V

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