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How many moles are present in …

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How many moles are present in 8g of calcium
  • 3 answers

Aarsh Muley 4 years, 11 months ago

0.2 moles

Yogita Ingle 4 years, 11 months ago

1 mole of atoms = Gram atomic mass

So, 1 mole of Ca atoms=Gram atomic mass of Ca

                                      =40g

Now,  40 g of calcium = 1 mole of calcium

So,      8 g of calcium =1/40×5 mole

                                    =1/5 mole

                                    =0.2 mole

Thus,there are 0.2 mole in 8 g of calcium.

Prabhat Singh 4 years, 11 months ago

8 ×avagadro no.
http://mycbseguide.com/examin8/

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