Nufla Nufla 13-01-2024 Chemistry contestada 8.5 g of Na2CO3 • xH2O was made upto 250 cm3 of aqueous solution.25 cm3 of the above solution is neutralized with 25 cm3 of 0.2 moldm-3 HCl solution.What is the molecular formula of Na2CO3 • xH2O ?