question_answer 33)

How are 0.50 mol \[N{{a}_{2}}C{{O}_{3}}\] and 0.50 M \[N{{a}_{2}}C{{O}_{3}}\] different?

Answer:

Molar mass of \[N{{a}_{2}}C{{O}_{3}}=106\,gmo{{l}^{-1}}\] \[\therefore \]\[0.5\,mol\,N{{a}_{2}}C{{O}_{3}}\] weighs 53 g. On the other hand, 0.5 \[M\,\,N{{a}_{2}}C{{O}_{3}}\] means 0.5 moles of \[N{{a}_{2}}C{{O}_{3}}\] is dissolved in one litre of solution.