If 10.5g of lead (II) trioxonitrate (V) is dissolved in 20cm³ of distilled water at 18^oC, the solubility of the solute in mol dm^-3 is
[Pb = 207, N = 14, O = 16]

• A.1.60
• B.5.25
• C.16.00
• D.525.00
• E.