Question

[
begin{array}{r}
cos _{2 n+2}+left(n+frac{n+1}{2}right) 0_{2}
longrightarrow n w_{2}+(n+1) n_{2}
end{array}
]
Volume of 0 , wed.
Volume of ( omega_{2} ) founed ( =frac{7}{4} )
[
begin{array}{l}
frac{n+(n+1) / 2}{n}=frac{+}{4}
Rightarrow n=2
end{array}
]
Alpane is ( C_{2} mathrm{H}_{6} )

# 10 A gaseous alkane (C H20-2) is exploded with oxygen. The volume of O, used and co, formed are in the ratio of 7:4. Deduce the value of n. 11. A macromolecule of iron has molar mass 2800 amu, it contains 8% iron by mass. The number of iron atom in one formula unit of the macromolecule is

Solution