25 ~mL of the given HCl solution requires 30 ~mL of 0.1 M sodium carbonate solution. What is the volume of this HCl solution required to titrate 30 ~mL of 0.2 M aqueous NaOH solution?

Step-by-step solution

25 ~mL of HCl solution requires 30 ~mL of 0.1 M Na ₂ CO ₃ solution. array l N ₁ ~V ₁= N ₂ ~V ₂ 25 N ₁=30 0.2 (0.1 M Na ₂ CO ₃=0.2 ~N . . Na ₂ CO ₃ ) N ₁= 6 25 =0.24 ~N array Now, HCl solution is titrated with NaOH solution. array l M ₁ ~V ₁= M ₂ ~V ₂ ; 0.24 NHCl =0.24 M HCl V 0.24 1=30 0.2 1 V =25 ~mL array