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CBSE Class 11-science Answered

The hydrated salt na2so4 nh20 under goes 55% loss in weight on heating and become anhydrous.the value of small n? will
Asked by sireeshabandaru88 | 11 Apr, 2020, 12:24: PM
answered-by-expert Expert Answer
Molar mass of Na2SO = 142 gm
 
Percent loss of water from Na2SOis 55
 
So,
 
fraction numerator 18 straight n over denominator 142 plus 18 straight n end fraction cross times 100 space equals space 55 space
 
1800n = 7810 +  990n
 
n =9.64
 
n≈ 10 mol
Answered by Varsha | 11 Apr, 2020, 05:34: PM
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