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Is the law of constant composition true ...

Is the law of constant composition true for all types of compounds? Explain why or why not.

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V PUBLICATION-SOME BASIC CONCEPTS OF CHEMISTRY-QUESTION BANK
  1. Convert 22.4L in cubic metres.

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  2. How many significant figures are there in each of the following number...

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  3. Is the law of constant composition true for all types of compounds? Ex...

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  4. Classify each of the following as pure substance or mixture. (a) Ethy...

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  5. (a) How many signifficant figures are there in '1.00 xx 10^6' ? (c) Gi...

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  6. Calculate the number of moles in each of the following. a. '11 g' of '...

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  7. Express the number 0.0000000540 in scientific notation and calculate t...

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  8. State the number of significant figures in the following nựmbers. i. ...

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  9. 4.62g of sugar and 2.935g of table salt were mixed with 28.2g of water...

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  10. What is the difference between 3.0 and 3.00 g ?

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  11. Express the following numbers to four significant figures. i. 5.60798...

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  12. Calculate the molecular mass of the following? i. C6H(12)O6 ii. HNO...

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  13. Boron' occurs in nature in the form of two isotopes '5^(11)B' and '5^(...

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  14. Calculate the number of atoms in: i. 0.25 mole àtoms of carbon ii. 0...

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  15. A fIask P contains 0.5 mole of oxygen gas. Another flask Q contains 0....

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  16. Calculate the number of moles of iron in a sample containing '1.0 xx 1...

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  17. Calculate the no. of moles of phosphorus in 92.9 g of phosphorus assum...

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  18. Calculate the volume at STP occupied by i. 14g of nitrogen

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  19. Calculate the volume of 34 g of 'NH3' at STP?

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  20. The molecular mass of benzene is 78 and its percentage composition is ...

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