Plz answer these questions.

Asked by dineshchem108 | 15th Sep, 2018, 09:09: AM

Expert Answer:

 2H2O2(l)  → 2H2O(l)  +  O2(g) 
2 mole                         1 mole
 
 
    100 space ml space apostrophe straight X apostrophe space molar space equals space space fraction numerator 100 cross times open parentheses apostrophe straight X apostrophe close parentheses over denominator 1000 end fraction space

equals 0.1 straight X space mole

2 space mole space of space straight H subscript 2 straight O subscript 2 space gives space 1 space mole space of space straight O subscript 2

therefore space 0.1 straight X space mole space of space space straight H subscript 2 straight O subscript 2 space will space give space equals space fraction numerator 0.1 space straight X over denominator 2 end fraction space mole space of space straight O subscript 2

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 identical to space fraction numerator begin display style 0.1 space straight X end style over denominator begin display style 2 end style end fraction cross times space 24 space space space space space space space space space

space space therefore space space fraction numerator begin display style open parentheses 0.1 space straight X close parentheses cross times space 24 end style over denominator begin display style 2 end style end fraction space space equals space 3

therefore space space apostrophe straight X apostrophe space equals space fraction numerator 3 cross times 2 over denominator 0.1 cross times 24 end fraction

space space space space space space space space space space space equals space 2.5 space
The value of 'X'is 2.5 molar.
 
 
 

Answered by Varsha | 17th Sep, 2018, 10:36: AM