$2gm$ of $O_2$ at ${27}^o$C and $760mm$ of $Hg$ pressure has volume?

Q. 2gm of $O_2$ at ${27}^{\circ }$C and 760mm of Hg pressure has volume

Q. The volume occupied by $3.5$g of $O_2$ gas at ${27}^o$C & $740$ mm of Hg pressure$[O=16]$

Q. Calculate the volume of gas liberated at anode at N T P from the electrolysis of $N{a}_{2}S{O}_4\left(aq\right)$ solution by a current of 2 ampere passed for 10 minutes.

Q. What is the volume of 2g $O_2$ at 0 degree centigrade and 760 mm pressure of Hg?

Q. The vapour pressure of water at $80{}^{\circ }C$ is 355 mm of Hg. A 100 ml vessel contains water saturated with $O_2$ at $80{}^{\circ }C$ the total pressure being 760 mm of Hg. The contents of the vessel were pumped into a 50 ml vessel at the same temperature, what is the partial pressure of $O_2$?