Electrolysis of molten MgCl2 is the final production step in the isolation of magnesium from seawater by the Dow process. Assuming that 38.0 g of Mg metal forms, answer the following questions. (a) How many moles of electrons are required? 2 mol e− (b) How many coulombs are required? 1.93 × 10 5 C Enter your answer in scientific notation. (c) How many amps will produce this amount in 3.50 h? A

24.25A

Explanation:

Mg(aq) + 2e > Mg(s)

Two moles of electrons are required

1 mole of electron requires 1F of electricity

1F= 96500C

Since 2 moles of electrons are involved, 2F are involved that means 2×96500= 1.93×10^5C.

Mass of Mg produced from reduction equation=24g

But q=It and t must be in seconds.

If 1.93×10^5C produces 24g of Mg

3.5×60×60×I will produce 38.0g of Mg

Therefore I= 24.25A

metals are good conductor of electricity. it has free electrons on their surface. according to electron pool theory, each atom present in a metal crystal losses all of its valence electron and as a result a pool of free is form. these pool of electrons are free to move and   conduct electricity easily   while making metal as good conductor.

the correct answer is a. the ability of electrons to flow throughout the metal.

if it's not useful, feel free to report for mistake in answer.

the formula for the conversion of temperature from degree celsius to kelvin is:

the sample of water at is converted to kelvin temperature by using the above formula as:

on comparing the two samples of water at or we can say that at and at respectively. the difference between the temperatures of two samples of water is:

hence, one can say that the sample of water at is greater than the sample of water at by .