Question

What is the molar mass of sodium carbonate, $$(Na_2CO_3)$$?

Answer 1

The molar mass of sodium carbonate is $$105.987\ g/mol$$

To calculate the molar mass of a compound, multiply the subscript of each element from the formula times the molar mass of the element.

The molar mass of an element is its atomic weight.

Weight mass of $$Na_2CO_3$$

$$(2\times 22.98976928\ g/mol Na)+(1\times 12.0107\ g/mol C)+(3\times 15.999\ g/mol O)$$

$$=105.987\ g/mol \ Na_2 CO_3$$