While driving your rental car on your vacation in Europe, you find that you are getting 8.8 km/L of gasoline. What does this val
1 answer:
Answer : The value correspond to in miles per gallon is, 20.6976 mile/gallon
Explanation :
The conversion used to convert kilometer to miles is:
1 km = 0.6214 miles
The conversion used to convert liter to gallon is:
1 L = 0.2642 gallons
Thus,
1 km/L =
1 km/L = 2.352 mile/gallon
As we are given that 8.8 km/L of gasoline. Now we have to convert it into mile/gallon.
As, 1 km/L = 2.352 mile/gallon
So, 8.8 km/L =
= 20.6976 mile/gallon
Thus, the value correspond to in miles per gallon is, 20.6976 mile/gallon
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<h3>Explanation</h3>There are two electrodes in a voltaic cell. Which one is the anode?
The lithium atom used to have no oxygen atoms when it was on the reactant side. It gains two oxygen atoms after the reaction. It has gained more oxygen atoms than the manganese atom. Gaining oxygen is oxidation. As a result, lithium is being oxidized.
Oxidation takes place at the anode of a cell. Therefore, the anode of this cell is made of lithium.
Lithium has an atomic mass of 6.94. Each gram of Li would contain 1/6.94 = 0.144 moles of Li atoms. Each Li atom loses one electron in this cell. Therefore, the number of electron transferred, <em>n</em>, equals 0.144 moles for each gram of the anode.
Let represents the electrical energy produced.
, where
- <em>n</em> is the <em>number of moles</em> electrons transferred,
- <em>F</em> is the Faraday's constant,
- <em>E</em>
is the cell potential,
<em>n </em>= 0.144 mol, as shown above, and
<em>F </em>= 96.486 kJ / ().
Therefore,
.