Physical Chemistry Answers

Search out discoveries in science and their applications in daily life (1900-1925)۔

Also mentioned discoveries which noble prize only between 1900-1925.

How will you estimate Zn2+ in zinc sulfate solution by titrimetric method? Explain in detail with chemical structure of required indicator.

A metal M exists in two forms M^b+ and M^a+ (b > a). When a current of 2 A is passed through a 1 L aqueous solution of 0.01 M M^b+ for 965 s, 0.005 mol of the metal was deposited at the cathode while the concentration of M^a+ in solution was found to be 0.005 M. Assuming that the reduction process takes place stepwise and equal moles of electrons are consumed in both the reduction reactions, find the value of a × b.

Search out discoveries in science and their applications in daily life. (1900-1925)

Also mentioned discoveries which noble prize

at 0°C, the density of mercury is 13.595 x 10³ kg/m³. What is the height of the mercury column in a barometer if the pressure P is Exactly 1 atm = 101.325 kPa?

 Explain the problems faced by aluminum vehicles?

Which of the following ions has the highest ion mobility in aqueous solution at 298 K?

(a) OH-

(b) Mg2+

(c) H+

(d) SO42-

What is the potential for the electrochemical cell if the activity of H+ in the anodic half-cell is 0.100, the fugacity of H2 in the anodic half-cell is 0.500, and the activity of Cu2+ in the cathodic half-cell is 0.0500? Fugacity is the equivalent term for the activity of a gas.

What is the activity of Ag+ in an electrochemical cell if the activity Zn2+ is 0.0167 and Ecell is +1.50 V?

Which of the following ions has the highest ion mobility in aqueous solution at 298 K?