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A copper plate of 20 cm x 10 cm is to be...

A copper plate of 20 cm x 10 cm is to be plated with silver of 1 mm thickness on both the sides. Number of moles of silver required for plating is (density of silver =10.8 g m /cc)____________

A

`1.2 xx 10^(24)`

B

`2.4 xx 10^(24)`

C

`1.2 xx 10^(13)`

D

`2.4 xx 10^(23)`

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The correct Answer is:
A
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AAKASH SERIES-STOICHIOMETRY-Objective Exercise -2
  1. 7g of nitrogen occupies a volume of 5 litres under certain conditions....

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  2. Henry thinks that a mole contains 6.023 xx 10^(24) molecules. Hence th...

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  3. A copper plate of 20 cm x 10 cm is to be plated with silver of 1 mm th...

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  4. One mole of oxygen (O(2)) is present in the following mass of sulphuri...

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  5. The number of gram - atoms of sulphur in 2 moles of peroxydisulphuric ...

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  6. Four ten litre flasks are separately filled with the gases hydrogen, h...

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  7. Which of the following has number of molecules present equal to those ...

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  8. If the relative atomic mass of oxygen is 64 units, the molecular mass ...

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  9. Both 22 grams of CO(2) and 8 grams of methane contain the following ca...

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  10. What is the mole percentage of O(2) in a mixture of 7g of N(2) and 8g ...

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  11. The number of oxygen molecules present in 100 grams of limestone is

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  12. 7.5 g of a gas occupies 5.6 litres as STP. The gas is

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  13. Total number of sulphate ions present in 3.92 g of chromic sulphate is...

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  14. 48 g of Mg contains the same number of atoms as 160 g of another eleme...

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  15. Bell metal contains 80% copper . The mass of Bell metal which contain ...

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  16. Number of atoms in 558.5 gm Fe (At.wt of Fe = 55.85 g mol^(-1)) is

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  17. 1 mole of each of Ca(OH)(2) and H(3) PO(4) are allowed to react under ...

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  18. The mass of 1.5 xx 10^(26 molecules of a substances is 16 kg . The mol...

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  19. Which of the following has higher mass

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  20. One mole ion which has two moles of charge

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