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The number of moles of nitrogen atom in ...

The number of moles of nitrogen atom in 56 g nitrogen is

A

2 mol

B

4 mol

C

8 mol

D

10 mol

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The correct Answer is:
B
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AAKASH INSTITUTE ENGLISH-SOME BASIC CONCEPT OF CHEMISTRY-EXERCISE
  1. Gay Lussac's law is not valid in the chemical reaction:

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  2. Atomic weight of chlorine is 35.5 . It has two isotopes of atomic weig...

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  3. The number of moles of nitrogen atom in 56 g nitrogen is

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  4. The number of mole of N - atom in 18.066 x 10 ^(23) nitrogen atoms is

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  5. What weight in grams is represented by 1.5 moles of sulphur dioxide ?

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  6. The number of atoms in 20 g of SO(3) is approximately

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  7. The number of particles presents in 1 mol of nitrogen atom are

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  8. Boron has two stable isotopes, .^(10)B(19%) and .^(11)B(81%). The atom...

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  9. Calculate the mass of 1 amu in grams.

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  10. One 'u' stands for the mass of

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  11. What is the mass of one molecule of water in grams?

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  12. 74.5 g of a metallic chloride contain 35.5 g of chlorine. The equivale...

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  13. Two element X ( at . Mass = 75) and Y(at .mass =16) combine to given ...

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  14. Equivalent weight of crystalline oxalic acid is

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  15. Find out the equivalent weight of H(3) PO(4)in the reaction: Ca(OH)(...

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  16. Equivalent mass of a metal is 12 g "mol"^(-1). Hence, equivalent ma...

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  17. The percentage of nitrogen in HNO(3) is

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  18. What is the ratio of empirical formula mass to molecular formula mass ...

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  19. The compound in which mass percentage of carbon is 75% and that of hyd...

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  20. Identify the molecule having empirical formula CH(2)O

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