Which wave can travel in both empty space and matter?
2 answers:
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Answer:-
Solution:- The equation for the conversion of gold ions to gold metal is as follows:
From this equation, 1 mol of Gold metal is deposited by 3 mole of electrons.
We know that one mol of electron carries one Faraday that is 96500 Coulombs.
So. 3 moles of electrons would be = 3(96500) = 289500 Coulombs
We could calculate the total Coulombs by using the formula:
q = i*t
where, q is the charge in coulombs, i is the current in ampere and t is time in seconds.
q =
q = 51408 ampere per second
Since, 1 ampere per second = 1 coulomb
So, 51408 ampere per second is same as 51408 coulombs.
Let's use this value of q and the info from balanced equation and molar mass(196.967 g epr mol) of gold to calculate the mass of it being deposited while the current is passed as:
= 35.0 g Au
So, 35.0 g of gold are deposited on passing 23.8 ampere of current for 36.0 min to a gold solution.