A 500mL sample of a 0.1M Cr^(3+) is electrolyzed with a current of 96.5A . If the remaining [Cr^(3+)] is 0.04M then the duration of process is:-
A 20.0 mL sample of a 0.20 M solution of the weak diprotic acid H_(2)A is titrated with 0.250 M NaOH. The concentration of solution at the second equivalent point is:
20 mL of 0.5 M HCl is mixed with 30 mL of 0.3 M HCl, the molarity of the resulting solution is :
1.0 L of 0.1 M aqueous solution of KCI is electrolysed A current of 96.50 mA is passed through the solutoin for 10 hour which is /are correct ? (assume volume of soluto remains constant during electrolysis)
A 25.0 mL sample of 0.15 M silver nitrate, AgNO_(3) , is reacted with a 3.58g sample of calcium chloride, CaCl_(2) (M=111.0). Which of the following statements is true?
A 25.0 mL. sample of 010 M HCl is titrated with 0.10 M NaOH. What is the pH of the solution at the points where 24.9 and 25.1 mL of NaOH have been added?
