The density of nitric acid solution is 1.5 ~g ~mL ⁻¹ . Its weight percentage is 68 . What is the approximate concentration (in . mol L ⁻¹ ) of nitric acid? ( N =14 u ; O =16 u ; H =1 u)

Step-by-step solution

aligned & Given - Density ( )=1.5 ~g / ml & Volume ( v )=1000 ml & Weight percentage =68 & Mass of solution = density volume & 1.5 ~g / ml 1000 ml =1500 ~g & Mass of Nitric Acid = weight percentage Total mass of & solution. aligned Mass of Nitric acid =0.68 1500 ~g =1020 ~g Molar mass of Nitric Acid ( HNO ₂ )=1( H )+14( ~N )+3 16(0)=63 ~g / mol Moles of Nitric acid = mass molar mass Moles of Nitric acid = 1020 ~g 63 ~g / mol =16.19 ~mol Molarity ( m )= moles of solute Volume of solution in litres Molarity = 16.19 ~