Question

Write the formulae for the Caustic potash and calculate molecular mass for Caustic potash

Answer 1

• The formula of caustic potash is $\mathrm{KOH}$
• 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 $\mathrm{KOH}$-=Atomic mass of $\mathrm{K}$+Atomic mass of $\mathrm{O}$+Atomic mass of $\mathrm{H}$

$$\begin{gathered} =39+16+1 \\ =56u \end{gathered}$$