What is the morality of a solution prepared by dissolving 10.60g of sodium trioxocarbonate (v) in enough distilled water to obtain 250.0 ml of a solution?

I don't know what the 'morality' would be but the Molarity = moles solute / Volume of Solution in Liters

Molarity = [(moles NaHCO3/Soln Vol in Liters)]

moles NaHCO3 = (10.60g/84g/mol)= 0.1262 mole
Vol(L) = 0.250 L

Molarity(M)= (0.1262/0.250)Molar = 0.505M