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If water sample are taken from sea, rive...

If water sample are taken from sea, rivers or lake, they will be found to contain hydrogen and oxygen in the approximate ratio of `1 : 8`. This indicates the law of :

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NARENDRA AWASTHI-STOICHIOMETRY-Level 3 - Subjective Problems
  1. If water sample are taken from sea, rivers or lake, they will be found...

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  2. What volume of a liquid (in L) will contain 10 mole ? If molar mass of...

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  3. 16 g of SO(x) gas occupies 5.6 L at 1 atm and 273 K.What will be the v...

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  4. 200 mL of 1 HCl, is mixed with 300 mL of 6 M and the final solution i...

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  5. N(2)(g) reacts with H(2)(g) in either of the following ways depending ...

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  6. One commercial system removes SO(2) emission from smoke at 95(@)C by t...

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  7. W is the mass of iron (in g) which will be converted into Fe(3)O(4) by...

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  8. Calculate the total moles of atoms of each element present in 122.5 g ...

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  9. On dissolving 2.0 g of metal in sulphuric acid ,4.51 g of the metal su...

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  10. One gram of a metallic chloride was found to contain 0.835 g of chlori...

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  11. 0.7875 g of crystalline barium hydroxide is dissolved in water .For th...

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  12. 2.0 g of polybasic organic acid (Molecular mass =600) required 100 mL ...

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  13. A mixture contains 1.0 mole each of NaOH,Na(2)CO(3) and NaHCO(3). When...

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  14. When BrO(3)^(-) ion reacts with Br^(-) ion in acidic medium, Br(2) is ...

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  15. A volume of 12.5 mL of 0.05 M SeO(2) reacts with 25 mL of 0.1 M CrSO(4...

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  16. A 0.276 g impure sample of copper ore is dissolved and Cu^(2+) is titr...

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  17. A sample of 28 mL of H(2) O(2) (aq) solution required 10 mL of 0.1 M K...

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  18. For the redox reaction given, what is the value of (x)/(z) ? xNO(3)^...

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  19. On heating 0.220 g of a metallic oxide in presence of hydrogen,0.045 g...

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  20. 10 g mixture of K(2)Cr(2)O(7) and KMnO(4) was treated with excess of K...

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  21. In an ore, the only oxidizable material is Sn^(2+). This ore is titrat...

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