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CBSE Class 11-science Answered

What is the molality of 2M HN3 solution? (density of solution is 1.5 g/ml) 
Asked by arushidabhade | 23 May, 2019, 06:49: PM
answered-by-expert Expert Answer
W e space C a n space d i r e c t l y space u s e space t h e space f o r m u l a fraction numerator D e n s i t y over denominator M o l a r i t y end fraction space equals space left curly bracket fraction numerator 1 over denominator m o l a l i t y end fraction space plus fraction numerator M o l e c u l a r space w e i g h t over denominator 1000 end fraction right curly bracket P u t t i n g space t h e space v a l u e s space i n space a b o v e space e q u a t i o n space w e space g e t space minus fraction numerator 1.5 over denominator 2 end fraction equals left curly bracket 1 over m plus 17 over 1000 right curly bracket S o l v i n g space f o r space m o l a l i t y comma space m space w e space g e t space minus m o l a l i t y space equals space 1.58 m
Answered by Sumit Chakrapani | 23 May, 2019, 10:12: PM

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