Homework Answers
1 Mole or 40 g of Calcium contains Avogadro Number (6.022 x 1023) of atoms. [Since, molar mass of Calcium = 40 g].
Hence, 1 g of Caclium will contain
=6.022×102340
atoms.
Or, 1.75 g of Calcium will contain =
=6.022×102340×1.75
atoms
= 2.635 x 1022 atoms
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