What is the chemical name of the compound K2SO4? Use the list of polyatomic ions and the periodic table to help you answer.
2 answers:
Answer: Option (B) is the correct answer.
Explanation:
The given compound is , that is, it contains potassium
and sulphate
ions.
Charge on a sulphate ion is -2 and charge on two potassium ions is +2. Therefore, according to cross multiplication method it results in the formation of .
Thus, we can conclude that chemical name of the compound is potassium sulfate.
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Explanation:
To convert moles to particles or grams to particles, let us have a firm understanding of what a mole is.
A mole is the unit of measuring quantity of particles.
It is the amount of substance that contains the Avogadro's number of particles.
The particle can be atoms, molecules, formula units, electrons, protons, neutrons, etc.
So, to convert from moles to particles;
1 mole of a substance contains 6.02 x 10²³ particles
To convert from grams to particles;
First convert to moles;
number of moles =
So, 1 mole of a substance contains 6.02 x 10²³ particles