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  5. The Solid State / ठोस प्रावस्था

12th Class Chemistry The Solid State / ठोस प्रावस्था

  • question_answer 49)
    If NaCl is doped with 10–3 mol % of SrCl2, what is the concentration of cation vacancies?

    Answer:

     2 Na+ ions are replaced by 1 Sr2+ ion, Each Sr2+ ion causes one cation vacancy. Hence, concentration of cation vacancies on being doped with  10?3 mol % SrCl2 = 10?3 mol %   = 6022 X 1018 vacancies.  


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