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The hydrated salt Na2CO3.xH2O undergoes 46% loss in mass on heating and becomes anhydrous.then wat is the value of 'X'?

charan ram , 15 Years ago
Grade 11
anser 1 Answers
Fawz Naim

The hydrated sodium carbonate is converted into anhydrous sodium carbonate on heating which means that X molecoles of water are separated completely. Therefore the loss in weight is equal to the X molecules of water.

46% of the weight of hydrated sodium carbonate=18X molecules of water

the molecular weight of sodium carbonate is 106 and that of water is 18

therefore 46%*(106+18X)=18X

find the value of X

Last Activity: 15 Years ago
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