Calculate the number of nitrogen molecules present in `2.8 g` of nitrogen gas.

Calculate the number of molecules present in 1 g of water.

The number of nitrogen molecules present in lc.c of gas at NTP is

The number of water molecules present in 8 g of oxygen gas are:

Calculate the total number of electrons presents in 1.4 g of nitrogen gas.

Calculate the total number of electrons present in '1.4 g' of nitrogen gas.

calculate the number of molecules present in the 36 g water .

The number of bonds in nitrogen molecule is

A discharge tube containing nitrogen gas at 25^(@)C in evacuated till the pressure is 2xx10^(-2) mm. If the volume of discharge tube is 2 litre. Calculate the number of nitrogen molecules still present in the tube (R=0*0821 L "atm mol"^(-1)K^(-1))

Number of molecules in 7.0 gm of nitrogen gas is