Question

What is the formula mass for sulfur dioxide?

Answer 1

Hint: As we know that formula mass of a substance is calculated by the sum of the average atomic masses of all the atoms represented in the formula of that substance. So here we have to calculate the formula of sulfur dioxide by writing down its formula followed by summation of atomic masses of atoms present in it.

Complete answer:
First of all, we must write down the chemical formula of sulfur dioxide followed by the calculation of its molar mass as follows:-
-Sulfur: Sulfur is a chemical element that belongs to group-16 with the symbol S and atomic number 16. It is abundant as well as multivalent and nonmetallic. Since it belongs to group-16, this means that it has 6 valence electrons and can share them easily to form bonds.
-Oxygen: Oxygen is the chemical element which also belongs to group-16 with the symbol O and atomic number 8. It also has 6 electrons in its valence shell and hence requires only 2 electrons to complete its octet.
-The chemical formula of sulfur dioxide is$S{{O}_{2}}$and is also known as sulfurous acid anhydride of sulfurous anhydride or sulfur oxide.
-Calculation of molar mass of sulfur dioxide ($S{{O}_{2}}$):-
Atomic mass of Sulfur (S) = 32g/mol
Atomic mass of Oxygen (O) = 16g/mol
Formula mass of $S{{O}_{2}}$= (32 + 2(16)) g/mol = 64g/mol
Hence, the formula mass of sulfur dioxide is 64g/mol.

Note:
-Kindly try to learn the atomic number and atomic masses of elements in the periodic table to solve such types of questions.
-Also sulfur dioxide is a colorless gas with an unpleasant or choking odor. It is a very toxic gas and harmful for our eyes.