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e-lub [12.9K]
2 years ago
5

What drives a galvanic cell?

Chemistry
1 answer:
lutik1710 [3]2 years ago
6 0

Answer:

A galvanic cell is driven by the spontaneity of the chemical reaction occurring between the two compartments of the cell: Anode and Cathode.

Explanation:

A galvanic cell is driven by the spontaneity of the chemical reaction occurring between the two compartments of the cell: Anode and Cathode.

Note that the spontaneity of a reaction is either determined by its positive standard cell potential ( ξ ∘ ) or its negative free energy ( Δ G ∘ ).

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How many moles are present in 54.8 mL of mercury if the density of mercury is 13.6 g/mL?​
lesya692 [45]

Answer:

3.72 mol Hg

General Formulas and Concepts:

<u>Chemistry - Atomic Structure</u>

  • Reading a Periodic Table
  • Using Dimensional Analysis
  • Density = Mass over Volume

Explanation:

<u>Step 1: Define</u>

D = 13.6 g/mL

54.8 mL Hg

<u>Step 2: Identify Conversions</u>

Molar Mass of Hg - 200.59 g/mol

<u>Step 3: Find</u>

13.6 g/mL = x g / 54.8 mL

x = 745.28 g Hg

<u>Step 4: Convert</u>

<u />745.28 \ g \ Hg(\frac{1 \ mol \ Hg}{200.59 \ g \ Hg} ) = 3.71544 mol Hg

<u>Step 5: Check</u>

<em>We are given 3 sig figs. Follow sig fig rules and round.</em>

3.71544 mol Hg ≈ 3.72 mol Hg

8 0
3 years ago
A student made a graph to show the chemical equilibrium position of a reaction.
pogonyaev

Answer:

Concentration, because the amounts of reactants and products remain constant after equilibrium is reached.

Explanation:

The rate of reaction refers to the amount of reactants converted or products formed per unit time.

As the reaction progresses, reactions are converted into products. This continues until equilibrium is attained in a closed system.

When equilibrium is attained, the rate of forward reaction is equal to the rate of reverse reaction, hence the concentration of reactants and products in the system remain fairly constant over time.

When deducing the rate of reaction, concentration of the specie of interest is plotted on the y-axis against time on the x-axis.

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Holly wants to design a test to find out how fast her friend Jill can walk from one end of the playground to the other.
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Answer:

D

Explanation:

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D. 1.25 billion years
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Which choice best explains how global winds are formed?
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Answer:

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Explanation:

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2 years ago
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