Mole ConceptHard
Question
How many atoms do mercury vapour molecules consist of if the density of mercury vapour relative to air is 6.92? The average mass of air is 29 g per mole (Hg = 200).
Options
A.1
B.2
C.4
D.Infinite
Solution
If the atomicity of mercury is ‘x’, then 200x = 6.92 × 29 ⇒ x ≈ 1.
Create a free account to view solution
View Solution FreeMore Mole Concept Questions
The mass of 3.2 × 105 atoms of an element is 8.0 × 10−18 g. The atomic mass of the element is about(NA = 6 × 1023)...A mixture of 2 × 1021 molecules of P and 3 × 1021 molecules of Q weighs 0.60 g. If the molecular mass of P is 45, then t...∠FAsF bond angle in AsF3Cl2 molecule is :-...When acetylene is passed through red hot metal tubes, some molecules trimerize to form benzene. The molecular mass of th...The number of F– ions in 4.2 g AlF3 is (Al = 27, F = 19)...