Question

What is the molar mass of sodium bicarbonate, in g/mol? (Use two decimal places in atomic masses). Only give the numeric value of your answer. Don't include the units

Answer 1

83.99

Explanations:

The formula for sodium bicarbonate is given as NaHCO₃

To calculate the molar mass, we need to get the molar mass of each element first.

Molar mass of sodium element (Na) = 22.98g/mol

• Molar mass of ,Hydrogen, element = 1.00g/mol

• Molar mass of ,Carbon, element = 12.01g/mol

• Molar mass of, Oxygen, element = 16.00g/mol

Determine the molar mass of the compound

`\begin{gathered} \text{Molar mass=22.98+}1.00+12.01+3(16.00) \\ \text{Molar mass of }NaHCO_3=\text{22.98+}1.00+12.01+48.00 \\ \text{Molar mass of }NaHCO_3=83.99g\text{/mol} \end{gathered}`

Hence the molar mass of sodium bicarbonate to two decimal places is 83.99