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3 years ago

Indicate what happens to the concentration of Pb2+ in each half cell

Chemistry

1 answer:

Taya2010 [7]3 years ago

3 0

Answer:

Your questions requires diagrams of the cell to get which one is on the left or right. However, see the attached file below

The correct answer is (d) the left half-cell will decrease in concentration; and the right half-cell will increase in concentration.

Explanation:

The concentration of the Pb2+ increases in the oxidation half cell while the concentration of the Pb2+ decreases in the reduction half cell during the reaction.

In the Left Beaker (Left half cell), their is less concentration

Pb(s) ---> Pb2+(aq) + 2 e- Concentration of Pb2+(aq) increase ; Electrons going out from this side

In the Right Beaker (right half cell), their is more concentration

Pb2+(aq) + 2 e- ---> Pb(s) Concentration of Pb2+(aq) decrease ; Electrons coming in to this side

Electrons will flow from Left to Right direction.

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4 years ago

Contrast mixtures with pure substances

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4 years ago

The solubility product for barium sulfate is 1.1 × 10–10. calculate the molar solubility of barium sulfate.

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Now, for the this problem, the reaction is

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3 years ago

How many grams of Helium can be found in 3.4 moles of it.

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2 years ago

Using the determined equivalence point from question 2 and the balanced reaction of acetic acid and sodium hydroxide, calculate

goldenfox [79]

Answer:

Molarity of the packet is 0.5M

Explanation:

In the reaction of acetic acid with NaOH:

CH₃COOH + NaOH → CH₃COO⁻ + H₂O + Na⁺

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When you are titrating the acid with NaOH, you reach equivalence point when moles of acid = moles of NaOH.

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As you don't know the volume of your packet, you can assume its density as 1g/mL. Thus, volume of 0.6g of hot sauce is 0.6mL = 6x10⁻⁴L.

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3 years ago