A 25.0ml sample of 0.1 M HCl is titrated with 0.1 M NaOH . What is the pH of the solution at the points where 24.9 and 25.1 ml of NaOH have been added ?
1000mL 1M CuSO_4 (aq) is electrolysed by 9.65 A current for 100 sec using Pt-electrode which is /are correct statements?
20ml of 0.1M of an electrolyte could cause flocculation of 980ml of a sol. What is the flocculation value of the electrolyte?
40 ml of 0.2 M HNO_(3) when reacted with 60 ml of 0.3 M NaOH gave a mixed solution. What is the pH of the resulting solution?
A constant force acting on a body of mass 3.0 kg changes its speed from 2.0 m s^(-1) to 3.5 m s^(-1) in 25 s. The direction of the motion of the body remains unchanged. What is the magnitude and direction of the force ?
25 mL of 0.1 M solution of metallic salt (A) oxidised 25 mL of 0.1 M sodium sulphite to sodium sulphate. If oxidation number of the metal in the salt (A) is 3, then new oxidation number of the metal is __________
A student has 100mL of 0.1 M KCl solution. To make it 0.2 M, he has to
