answer it plz

Asked by lovemaan5500 | 3rd Dec, 2017, 06:41: AM

Expert Answer:

T h e space b a l a n c e space e q u a t i o n space f o r space r e d u c t i o n space o f space C u space O space i s colon
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 C u O space plus space H subscript 2 space rightwards arrow with increment on top space C u space space space space space space space plus space H subscript 2 O
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 3.18 g m space space space space ? space space space space space space space space space 2.54 g m space space space 0.72 g m
space m o l e c u l a r space m a s s space equals space space space 79.55 space space space space space 2 space space space space space space space space space space space 63.54 space space space space space space space space space space 18

i n space a b o v e space r e a c t i o n space i t space i m p l i e s space t h a t comma
18 space g m s space o f space space H subscript 2 O space n e e d s space 2 space g m space o f space H subscript 2
s o comma space 1 space g m space space H subscript 2 O space n e e d s space fraction numerator 2 over denominator 18 space end fraction g space o f space H subscript 2
S o comma space 0.72 space g m s space o f space space H subscript 2 O space n e e d s space 2 over 18 cross times 0.72 space equals space 0.08 space g space o f space H subscript 2

B u t space i n space y o u r space q u e s t i o n space t h e y space a s k e d space t h a t space c a l c u l a t e space t h e space m a s s space o f space h y d r o g e n space w h i c h space c o m b i n e s space w i t h space 1 space m o l e space o f space o x y g e n space a t o m comma
I n space t h i s space c a s e comma
O x y g e n space a t o m space w i l l space c o m b i n e space w i t h space t w o space a t o m s space o f space H y d r o g e n
therefore space m a s s space o f space h y d r o g e n space equals space 1 space space
therefore m a s s space o f space 2 space a t o m s space o f space h y d r o g e n space w i l l space b e space 2 space g m

t h e r e f o r e comma space 2 space g m space o f space h y d r o g e n space w i l l space c o m b i n e s space w i t h space 1 space m o l e space o f space o x y g e n space a t o m comma

Answered by Ramandeep | 5th Dec, 2017, 11:27: AM