What is the molar mass of na2so3
173 g/mol
118 g/mol
141 g/mol
126 g/mol

126g/mol

Explanation:

Molar mass is the mass of all the atoms in a molecule or compound in grams per mole (g/mol or gmol-1). To calculate the molar mass of a molecule, we first obtain the atomic weights of the individual elements in a periodic table. We then count the number of atoms and multiply it by the individual atomic masses.

•Atomic weight of Sodium Na = 23g/mol

•Atomic weight of Sulphur S= 32g/mol

•Atomic weight of Oxygen O = 16g/mol

•Find the sum of the atomic weights / molar masses of all the elements.

We have 2 atoms of Sodium Na and three atoms of Oxygen O. This implies that we will have to multiply the number of their atoms present by their atomic masses/molar masses.

Molar mass of Na2SO3= (number of atoms × atomic mass of Na) + (number of atoms × atomic mass of S) + ( number of atoms × atomic mass of O)

Molar mass of Na2SO3= (2×23g/mol) + (1×32g/mol) + (3×16g/mol)

Molar mass of Na2SO3= 46g/mol + 32g/mol + 48g/mol

Molar mass of Na2SO3 = 126g/mol

Therefore the molar mass of Na2SO3 is 126g/mol

c)red bank

explanation:

red bank is a borough in monmouth county, new jersey, incorporated in 1908 and located on the navesink river, the area's original transportation route to the ocean and other ports.

chemical digestion occurs in the stomach were hcl and pepsin forms chyme, the mouth in which salivary amylase breaks down starch to form bolus, and the small intestine specifically the duodenum.