Read the following question and answer:
 
Write the formulae for caustic soda and calculate its molecular mass:
 
Atomic masses are given as follows:
 
(\(Ca\) = \(40\), \(O\) = \(16\), \(Na\) = \(23\), \(C\) = \(12\), \(H\) = \(1\), \(K\) =  \(39\) )
 
Formula:
Molecular mass is   \(g\ (mol^-{^1})\).