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CBSE Class 10 Answered

Q-If 100g of water is decomposed, how many grams of oxygen and hydrogen are obtained?
Asked by karanbora625 | 15 Apr, 2020, 04:10: PM
answered-by-expert Expert Answer
Decomposition of H2O-
2 H subscript 2 O rightwards arrow O subscript 2 space end subscript plus space 2 H subscript 2 2 space m o l e s space o f space H subscript 2 O space p r o d u c e s s space 1 space m o l e space o f space O subscript 2 space end subscript space a n d space 2 space m o l e s space o f space space H subscript 2. 100 space g space o f space w a t e r space m e a n s space 100 over 18 equals 5.5 space m o l e s s 2 space m o l e s space o f space H subscript 2 O space space p r o d u c e s space 1 space m o l e space o f space O subscript 2 S o comma space 5.5 space m o l e s space o f space H subscript 2 O space w i l l space g i v e equals 1 half cross times 5.5 equals 2.75 space m o l e s space o f space O subscript 2 O subscript 2 space i n space g equals 2.75 cross times 32 equals 88 g 2 space m o l e s space o f space H subscript 2 O space space p r o d u c e s space 1 space m o l e space o f space H subscript 2 O space S o comma space 5.5 space m o l e s space o f space H subscript 2 O space w i l l space g i v e equals 5.5 space m o l e s space o f space H subscript 2 H subscript 2 space i n space g equals 5.5 cross times 2 equals 11 space g
Answered by Ravi | 16 Apr, 2020, 08:01: PM
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