A 100 mL solution was made by adding 1.43 g of . The normality of the solution is 0.1 N. The value of x is ________.(The atomic mass of Na is 23 g/mol)

molarity ×xF= Normality  molarity =0.12 Moles of Na2CO3⋅xH2O=0.12×110 Mass of Na2CO3⋅xH2O=1200× molar mass  Molar mass =106+x(18)106+18x200=1.43106+8x=28618x=180x=10