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Q.
$7.5$ grams of a gas occupy $5.8$ litres of volume at $STP$ the gas is
Some Basic Concepts of Chemistry
Solution:
$\because5.8\, L$ of gas has mass $= 7.5 \,g$
$\therefore 24.4 \,L$ of gas has mass$=\frac{7.5}{5.8}\times22.4=28.96$
So molecular weight $= \,29$
So, molecular formula of compound is $NO$