20th ques

Asked by lovemaan5500 | 26th Nov, 2017, 06:38: AM

Expert Answer:

The space formula space is comma space Fe left parenthesis SCN right parenthesis 3 space xH subscript 2 space straight O
Let space us space consider space 100 space straight g space of space sample space contains space 19 percent sign space of space straight H 2 space straight O space
Therefore comma space Fe left parenthesis SCN right parenthesis 3 space equals space 81 space straight g space
Molecular space weight space of space Fe left parenthesis SCN right parenthesis 3 space equals 230 space
Moles space of space Fe left parenthesis SCN right parenthesis 3 space equals space 81 over 230
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 0.352
Moles space of space water space equals 19 over 18
space space space space space space space space space space space space space space space space space space space space space space equals space 1.0555
Moles space of space water space per space space Fe left parenthesis SCN right parenthesis 3 space equals fraction numerator 1.0555 over denominator 0.352 end fraction
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 3 colon 1
The space formula space is comma space Fe left parenthesis SCN right parenthesis subscript 3 space 3 straight H subscript 2 straight O space
 

Answered by Varsha | 27th Nov, 2017, 12:36: PM