Answer / ramesh.s

Molecular weight of Disodium tartarate is (C4H4Na2O6.2H2O)=[(12*4)+(1*4)+(23*2)+(16*6)+(2(1*2)+16)]=230
Disodium tartrate is having two water molecules(2H2O)=(2(1*2)+16)=36
So that % of water content is (36/230*100)=15.66%

Answer / hymavathy. c

DST m. w=230
It's a known amount of water molecule, it's easily available

Answer / seru sivannarayana

15.66%

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