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A flask contains 16 gm helium (""(2)^(4)...


A flask contains 16 gm helium `(""_(2)^(4)He)` gas (Gram atomic mass of He=4). Find
(i) Moles of He
(ii) Moles of proton
(iii) Total number of neutrons

Text Solution

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The correct Answer is:
`(##ALN_NC_CHM_MC_E01_004_A01##)`
(i) 4 (ii) 8 (iii) `8N_(A)`
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ALLEN-MOLE CONCEPT-Basic Exercise
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  2. 2 moles of H(2)SO(4) is kept in a beaker. Find (i) Moles of H-atoms ...

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  3. A flask contains 16 gm helium (""(2)^(4)He) gas (Gram atomic mass of H...

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  4. 6.4 gm of SO(2) will contain how many (i) Moles of SO(2) (ii) Num...

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  5. What is the mass of one CO(2) molecules in gm?

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  6. A glass contains 36 ml of liquid water (density =1 gm/ml). Find (i)...

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  8. A flask of 8.21 litre contains CH(4) gas at a pressure of 2 atm. Find ...

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  9. Find moles of O-atoms in 5.6 litres of SO(3) at 0^(@)C ,1 atm ?

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  10. How many atoms are there in 5 moles of silver (N(A)=6xx10^(23))

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  11. How many moles of O-atoms are there in 1 mole CaCO(3)

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  12. How many moles of O-atoms are in 2.7xx10^(25) molecules of CO(2) (N(A)...

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  13. Find number of O-atoms in 1 moles O(2)

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  15. Find number of molecules in 11.35 litres SO(2) gas at STP.

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  16. 2NH(3) to N(2) + 3H(2) Find moles of H(2) produced from 4 moles of ...

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  17. CaCO(3) + 2HCl to CaCl(2) + H(2)O + CO(2) 0.2 mole CaCO(3) is reacte...

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  18. NH(2)C"OO"NH(4) overset(Delta)to 2NH(3) + CO(2) If 6 moles of NH(3) i...

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  19. KClO(3) to KCl + O(2)(unbalanced), If in above reaction 5 moles of K...

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  20. 2NH(3) to N(2) + 3H(2) If at the reaction, 18 mole of H(2) is produ...

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