Which part of the periodic would contain an element with a partially filled f sublevel
2 answers:
Answer: Lanthanide and actinide series
Explanation: The elements with partially or fully filled f orbitals belong to f block elements.
f block elements include lanthanides and actinides. They are called so the lanthanides contain the first element named as lanthanum and actinides contain first element named as actinium. They are also called as inner transition elements.
All of them have general electronic configuration:
, where n = 6-7
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Answer: 290 g of aluminium sulphate is produced.
Explanation:
To calculate the moles :
The balanced chemical reaction is:
According to stoichiometry :
3 moles of produce = 1 mole of
Thus 2.55 moles of will require=
of
Mass of
Thus 290 g of aluminium sulphate is produced.
So let's convert this amount of mL to grams:
Then we need to convert to moles using the molar weight found on the periodic table for mercury (Hg):
Then we need to convert moles to atoms using Avogadro's number:
So now we know that in 1.2 mL of liquid mercury, there are present.