Question

What is the mass of 0.5 moles of hydrogen chloride

Answer 1

hydrogen chloride=HCl
weight =1+35.5=36.5
0.5 moles =0.5×36.5
=18.25

Answer 2

mass=no of moles * molar mass
mass of hcl= 36[hydrogen =1, chloride =35}
mass=0.5*36=18


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