Question

Atomic mass of mercury is 200g and density is 13.6g/cc .How many moles of mercury is present in one litre? 1) 34 2) 68 3) 102 4) 63​

Answer 1

Answer: Density = mass/volume

So, mass = D*V

= 13.6*1000

= 13600g

Moles = given wt/ Molar Mass

=13600/200

= 68 moles

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