Constantan and maganin are used to make standard resistance because:
108 g fairly concentrated solution of AgNO_(3) is electrolysed by using 0.1 F charge the mass of resulting solution is
In an electrochemical process, a salt bridge is used:
What should be the characteristics of the electrolyte used in salt bridge?
To make a saturated solution, 36 g of sodium chloride is dissolved in 100 g of water at 293 K. Find its concentration at this temperature.
A very diluted saturated solution of a sparingle soluble salt X_(3)Y_(4) has a varpour pressure of 20 mm Hg tempeature T,while pure water exerts a pressure of 20.0126 mm Hg at the same temperature . Colculate molality (m)at temperature T :
The specific conductance of a saturated solution of AgCl at 298K is found to be 1.386xx10^-6S cm^-1 . Calculate its solubility (lambda^@_(Ag^+)=62.0 S cm^2 mol^-1 and lambda^@_(Cl^-)=76.3 S cm^2 mol^-1 ).
Name the alga which is used for obtaining agar. Give its uses.
