Question

how many atoms are present in 6g of Ca​

Answer 1

Answer:

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Explanation:

Answer

Correct option is

B

0.5 gram atoms and 3.01×10

23

atoms

Weight of calcium =20 g

Atomic weight of calcium =40 g/g atom

Number of gram atoms of calcium =

40 g/gatom

20 g

=0.5 gram atoms.

The Avogadro's number is 6.023×10

23

atoms/ g atom

The number of atoms of calcium =0.5 gram atoms ×6.023×10

23

atoms/ g atom

=3.01×10

23

atoms