What are you asking???? If the formula had no atoms of oxygen then......
V = nRT/P
V = 0.685 mol*(.0821 L*atm/K*mol)*273 K/1 atm
Answer:
RbF
mgo
nh4cl
because electrons are lost by and element forming a cation and gained by the other element forming an anion and held together by electrostatic forces
Nitrous oxide has 2 nitrogen atoms and 1 oxygen atom per molecule