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Question
Write structure and molecular formula for the following compounds:
a. Orthophosphoric acid
b. Sulphurous acid
Solution
a. Orthophosphoric acid:
Molecular formula: H3PO4
Structural formula:
\[\begin{array}{cc}
\phantom{..}\ce{O}\\
\phantom{..}||\\
\phantom{..}\ce{P}\\
\phantom{..}/\phantom{...}|\phantom{...}\backslash\\
\phantom{.}\ce{OH}\phantom{...}\ce{OH}\phantom{...}\ce{OH}\\
\end{array}\]
b. Sulphurous acid:
Molecular formula: H2SO3
Structural formula:
\[\begin{array}{cc}
\phantom{..}\ce{O}\\
\phantom{..}||\\
\phantom{..}\ce{HO - \underset{^{..}}{S} - OH}\\
\end{array}\]
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