An atom of calcium has a mass of 6.64x 10-23g. the number of calcium atom present in 10g of calcium is
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1gm calcium contain 40 Na atom then 10 gm contain 400Na atoms
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as mass of one atom is 6.64×10^-23 g
then 1 g of Ca contain 1÷6.64×10^-23 atom then in 10 g it would be 1 ÷6.64×10^-23 ×10 atoms that would be
.
1.5060240E23
then 1 g of Ca contain 1÷6.64×10^-23 atom then in 10 g it would be 1 ÷6.64×10^-23 ×10 atoms that would be
.
1.5060240E23
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