We know 1 mole of any atom or molecules contains
atom or molecules.
1 mole of HBr i.e 81 gm/mol contains
atom or molecules.
So, mass of
molecules is :

Therefore, mass of
molecules is 1.21 gm .
Hence, this is the required solution.
0.5 litres contain 1.1 moles
therefore 1 litre will have= 1*1.1/0.5
molarity=2.2M
The answer is a identical
A Geiger counter is a type of particle detector that measures ionizing radiation. Geiger counters are used to detect ionizing radiation