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Calculate the number of molecules in (i)...

Calculate the number of molecules in (i) 1 g of water and (ii) 5600 `cm^3` of nitrogen at STP.

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V PUBLICATION-SOME BASIC CONCEPTS OF CHEMISTRY-QUESTION BANK
  1. a. Calculate the number of molecules in 5 moles of water.

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  2. Express in moles (a) 4 g of oxygen atoms (b) 21 g of nitrogen molecule...

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  3. Calculate the number of molecules in (i) 1 g of water and (ii) 5600 cm...

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  4. Calculate the mass of chlorine required to react with 0.20 g of hydrog...

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  5. What mass of 60% of sulphuric acid (by mass) is required to decompose ...

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  6. How can you illustrate the law of multiple proportions by using oxides...

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  7. "One mole of all substances contain the same number of specified parti...

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  8. Fill in the blanks.

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  9. Arrange the following in the increasing order of their mass. a. 1 g o...

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  10. One volume of a gaseous compound requires 2 volumes of O2 for combusti...

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  11. "The star of India'' sapphire weighs 563 carats If one carat is equal ...

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  12. 1050cm^3 of a gas measured at STP weighis 3 g. Catculate the mass of a...

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  13. In the combustion of methane, what is the limiting reactant and why?

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  14. Give an example of molecule in which. (i) Ratio of molecular formula ...

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  15. Balance the following equations: a. H3PO3 rarr H3PO4+PH3 b. Ca+H2O r...

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  16. Match the following.

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  17. Which of the following mixtures are homogeneous? a. wood b. tap wate...

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  18. 3.00 g of H2 react with 29.00 g of O2 to yield H2O. (i) Which is the ...

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  19. If the mass percent of various elements of a compound' is known, its e...

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  20. Calculate the number of atoms in. a. 1g of hydrógen

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