1.

If the volume occupied in a crystal by a molecule of NaCl is 47xx10^(-24)mL calculate the volume of the crystal weighing 1g. .

Answer»

SOLUTION :NUMBER of MOLECULES of NaCl.
`=("Mass")/("Molar mass")xx6.023xx10^(23)`
`=(1)/(58.5)xx6.023xx10^(23)=1.03xx10^(22)` ltbr. VOLUME of crystal `=1.03xx10^(22)xx47xx10^(-24)=0.484mL`.


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