Answer:
821.25gm
Explanation:
volume = 657
no of mole = 657/22.4
mass = no of mole * molecular mass
mass = 657/22.4*28
= 821.25gm
I'm pretty sure some molecules contain double bonds
Decomposition of a potassium superoxide happens according to the scheme:
4KO₂(s) + 2H₂O(l) → 4KOH(aq) + 3O₂(g)
m(K₂O)=4M(K₂O)m(O₂)/{3M(O₂)}
m(K₂O)=4×71.1×6.5/{3×32.0}≈19.3 g
Electron configuration<span> is the standard notation used to describe electronic structure of an atom. </span>
Agree with the statement buddy
