In the reaction, represented by Na2CO3 + HC1 → NaHO3 + NaCl, the equivalent weight of Na2CO3 is________?

In case of a solution (not of a solid in a liquid), whose total volume is more than the sum of volumes of its components in their pure states, solubility is________?

Maximum nitrogen percentage is in________?

The molar composition of a gas is 10% H2, 10% O2, 30% CO2 and balance H2O. If 50% H2O condenses, the final mole percent of H2 in the gas on a dry basis will be________?

Alinco, which is a aluminium-cobalt-nickel steel, is used for making ________?

A pyranometer is an instrument used for measuring the________?