29th sum

Asked by lovemaan5500 | 3rd Dec, 2017, 04:42: PM

Expert Answer:

space T h e space b a l a n c e space r e a c t i o n space o f space d e c o m p o s i t i o n space o f space a m m o n i u m space d i c h r o m a t e comma
space space space space space space space space space space space space space space space space space space space space space space space space space space space space left parenthesis N H subscript 4 right parenthesis subscript 2 C r subscript 2 O subscript 7 space rightwards arrow with greater than 100 to the power of 0 C on top space C r subscript 2 O subscript 3 left parenthesis s right parenthesis end subscript space plus space N subscript 2 left parenthesis g right parenthesis end subscript space plus space 4 H subscript 2 O subscript left parenthesis g right parenthesis end subscript
m o l e c u l a r space m a s s space space space space space space space space space space space space space 252 space space space space space space space space space space space space space space space space space space space space space space space space space space space 152 space space space space space space space space space space 28 space space space space space space space 72
G i v e n space w t. i n space g m s space space space space space space space space space space space space 63 g m s

l e t s space f i n d space o u t space n o. space o f space m o l e s space i n space 63 space g m s
n o. space o f space m o l e s space equals 63 over 252 equals space 0.25 m o l
space I n space t h i s space c a s e space t e m p. space i s space a b o v e space 100 to the power of 0 C space i. e. comma space l o s s space o f space m a s s space o f space r e a c tan t space equals space m a s s space o f space n i t r o g e n space g a s space e v o l v e d space plus m a s s space o f space w a t e r space v a p o u r s space
l e t s space f i n d space m a s s space o f space N subscript 2 space e v o l v e d space
space M left parenthesis m o l a r space m a s s right parenthesis equals fraction numerator m left parenthesis g m right parenthesis over denominator n left parenthesis m o l e s right parenthesis end fraction
space space space space space space space space space space space space space space space space space space space space space 28 equals fraction numerator m over denominator 0.25 end fraction
space space space space space space space space space space space space space space space space space space space space space space m equals 28 cross times 0.25 space equals space 7 g m s
space m a s s space o f space n i t r o g e n space g a s space e v o l v e d space equals space 7 space g m s

N o w space f i n d space t h e space m a s s space o f space w t e r space v a p o u r s comma
space M left parenthesis m o l a r space m a s s right parenthesis equals fraction numerator m left parenthesis g m right parenthesis over denominator n left parenthesis m o l e s right parenthesis end fraction
space space space space space space space space space space space space space space space space space space space 72 space space space equals space fraction numerator m over denominator 0.25 end fraction
space space space space space space space space space space space space space space space space space space space space space space m space equals space 72 space cross times space 0.25 space equals 18 space g m s

m a s s space o f space w a t e r space v a p o u r s space equals space 18 space g m s

therefore space t o t a l space m a s s space l o s s space o f space left parenthesis N H subscript 4 right parenthesis subscript 2 C r subscript 2 O subscript 7 space equals space space m a s s space o f space n i t r o g e n space g a s space e v o l v e d space plus m a s s space o f space w a t e r space v a p o u r s space
space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals space 7 space plus space 18
space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals space 25 space g m s space

Answered by Ramandeep | 4th Dec, 2017, 01:07: PM