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Calculate the number of moles in 22g of...

Calculate the number of moles in 22g of helium.

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VMC MODULES ENGLISH-SOME BASIC CONCEPT OF CHEMISTRY-EFFICIENT
  1. Gastric juice contains about 3.0 g HCI per litre. If a person produces...

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  2. Molecular mass of H(2)O(2) is

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  3. Calculate the number of moles in 22g of helium.

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  4. The formula weight of an acid is 82 amu .In titration 100 cm^(3) of a ...

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  5. Calculate the number of moles in 69g of sodium.

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  6. You are given one litre of 0.183 M HCI and one litre of 0.381 M HCI. W...

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  7. How many milliliter of conc. HCI of specific gravity 1.19 and which co...

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  8. Cuprous sulphide and silver sulphide are isomorphous. The atomic mass ...

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  9. A blackened silver coin weighing 15 g on treatment with HCI yielded 25...

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  10. A small amount of CaCO(3) completely neutralises 525 mL of 0.1 N HCl a...

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  11. 12 ml of a mixture of alkane and alkene having same number of carbon a...

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  12. Oxalic acid reacts with NaOH according to the given reaction. (COOH)2 ...

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  13. The number of AI^(3+) ions in 100 mL of 0.15 M solution of AI2(SO4)3 a...

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  14. 0.2 g of a primary aliphatic amine, on treatment with nitrous acid gav...

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  15. 10 g of a hydrated salt of BaCI2 was dissolved in one litre water. The...

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  16. A solution of acid having 62% by mass of acid has specific gravity of...

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  17. 20 ml of CO was mixed with 50 ml of O2 and the mixture was exploded. O...

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  18. Calculate the number of particle in each of the following: 50 g of Mg ...

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  19. Calculate the number of particle in each of the following: 100 g of KO...

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  20. Anhydrous sodium sulphate can absorb water vapour and convert to its d...

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