Question

Write the formulae for Baking soda and calculate the molecular mass for Baking soda

Answer 1

• The formula of Baking soda is ${\mathrm{NaHCO}}_3$
• The molecular mass of a substance is defined as the sum of masses of atoms or elements present in the molecule.
• So the atomic mass of ${\mathrm{NaHCO}}_3$=Atomic mass of $\mathrm{Na}$+ Atomic mass of $\mathrm{H}$+Atomic mass of $\mathrm{C}$+Atomic mass of $\mathrm{O}$$\times 3$

= 23 + 1 + 12 + 3 x 16 = 84 u