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Question

The weight of the pure sample of kclo3 to be decomposed in order to get 0.96g of o2..


Solution


A t o m i c space m a s s space o f space K equals 39 space u A t o m i c space m a s s space o f space C l equals 35.5 space u A t o m i c space m a s s space o f space O equals 16 space u M o l a r space m a s s space o f space K C l O subscript 3 equals 39 plus 35.5 plus 16 cross times 3 equals 39 plus 35.5 plus 48 equals 122.5 S o comma space m a s s space o f space K C l O subscript 3 space r e q u i r e d equals N o. space o f space m o l e s cross times M o l a r space m a s s space o f space K C l O subscript 3 equals 0.02 cross times 122.5 equals 2.45 space g

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