Think about it: Gold is one of the densest substances known, with a density of 19.3 g/cm3. If the gold in the crown was mixed wi
2 answers:
You might be interested in
Explanation:
It is known that in one day there are 24 hours. Hence, number of seconds in 24 hours are as follows.
Hence, total charge passed daily is calculated as follows.
And, number of Faraday of charge is as follows.
= 134300.52 F
The oxidation state of aluminium in is +3.
So, if we have to produce 1 mole of Al(s) we need 3 Faraday of charge.
Therefore, from 134300.52 F the moles of Al obtained with 89% efficiency is calculated as follows.
= 39842.487 mol
or, =
Molar mass of Al = 27 g/mol
Therefore, mass in gram will be calculated as follows.
Mass in grams =
=
= 1075.7 kg/day
Thus, we can conclude that the daily aluminum production of given aluminium is 1075.7 kg/day.
Answer : The correct option is, (a) paramagnetic with two unpaired electrons.
Explanation :
According to the molecular orbital theory, the general molecular orbital configuration will be,
As there are 14 electrons present in the given configuration.
The molecular orbital configuration of molecule will be,
The number of unpaired electron in the given configuration is, 2. So, this is paramagnetic. That means, more the number of unpaired electrons, more paramagnetic.
Hence, the correct option is, (a) paramagnetic with two unpaired electrons.