Answer the following questions:
 
Sodium chloride (\(NaCl\)) contains sodium and chlorine in the mass ratio of \(23:35.5\). If \(36\ g\) of sodium reacts completely, how much chlorine is needed to form \(NaCl\)?
 
Sodium : Chlorine   
\(2Na + Cl_2\) →
 
\(23:35.5\)   = 36 : \(x\)
 
\(x\) = \(g\)