What is the molar mass of NaCl (table salt)?

Question

Noah Aldrich · Accepted Answer

The molar mass of sodium chloride is 58.44 g/mol.

#"NaCl"# The molar masses of chlorine and sodium are respectively 22.990 g/mol and 35.45 g/mol. To calculate the molar mass of NaCl, multiply the subscript of each element times its molar mass, then add them together. If there is no subscript, it is understood to be #1#. #(1xx22.990"g/mol")+(1xx35.45"g/mol")="58.44 g/mol"#

Avery Adams · Answer

#"58.44277 g/mol"#

Sodium chloride, also known as table salt, is an ionic compound composed of sodium cations, #"Na"^(+)#, and chloride anions, #"Cl"^(-)# that has the formula unit #"NaCl"#.

An anionic compound's molar mass indicates how much one mole of that compound's formula units weigh.

You are aware that the formula unit for sodium chloride includes

As a result, the molar mass of sodium chloride will equal the sum of the molar masses of those two atoms.

#M_"M NaCl" = M_" MNaCl" + M_"M Cl"#

With a brief glance at the periodic table, you can observe that the molar masses of chlorine and sodium are

As a result, sodium chloride's molar mass will be

#M_"M" = "22.989770 g/mol" + "35.453 g/mol" = color(green)("58.44277 g/mol")#

In stoichiometric calculations, this value is often used as #"58.44 g/mol"#.

Ellie Andrews · Answer

undefined The molar mass of NaCl (table salt) is approximately 58.44 grams per mole.