19- by heating 2.86 g of hydrated sample of washing soda Na,CO3.XH20, till Complete drying the remaining mass was found to be 1.06 g. 1- Calculate the mass percentage of water in the sample? give your answer one decimal place. % ? 2- Calculate X ?

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19- by heating 2.86 g of hydrated sample of washing soda Na CO3.XH20, till
Complete drying the remaining mass was found to be 1.06 g.
1- Calculate the mass percentage of water in the sample? give your answer
one decimal place.
% ?
2- Calculate X?
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Transcribed Image Text:30 38 39 40 41 42 43 44 45 19- by heating 2.86 g of hydrated sample of washing soda Na CO3.XH20, till Complete drying the remaining mass was found to be 1.06 g. 1- Calculate the mass percentage of water in the sample? give your answer one decimal place. % ? 2- Calculate X? Previous Next
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