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A hard water sample contains calcium chl...

A hard water sample contains calcium chloride only degree of hardness with 200 ppm. Calculate the weight of calcium chloride present in 10 kg of water sample.

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2.22kg
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AAKASH SERIES-HYDROGEN AND ITS COMPOUNDS-SUBJECTIVE EXERCISE -2 (SHORT ANSWER TYPE QUESTIONS)
  1. What is meant by hardness of water? How many types are there?

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  2. Describe permutit process for removal of hardness.

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  3. Which salts are responsible for temporary hardness? Explain the remova...

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  4. How is deionised water prepared? Explain the principle with equations.

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  5. Explain the disadvantages of hard water.

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  6. Describe the preparation of heavy water by multi-stage electrolysis pr...

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  7. What is deuterolysis? Write the reactions of D2O with Mg3 N2, Ca3P2, A...

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  8. Write the following physical quantity values of heavy water : Freezing...

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  9. Explain the reaction of heavy water with Na, Na2O, N2O5 and Al4C3

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  10. Give four uses of heavy water.

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  11. What is the difference between hydrolysis and hydration. Give examples...

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  12. Why D2O cannot be used as drinking water ?

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  13. Calculate the weight of ordinary water that contains Avogadro number o...

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  14. A hard water sample contains calcium chloride only degree of hardness ...

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  15. One kilogram of hard water sample contains 5 xx 10^(-4) mol of magnes...

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  16. Degree of hardness of a water sample is 100ppm. 50 ml of standard soap...

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  17. 10 kg of a sample of water contains 6 g of magnesium sulphate. Calcula...

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  18. 50 ml of water has degree of hardness 160ppm. If a standard soap solut...

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  19. One litre water has 81 mg of calcium bicarbonate and 95 mg of magnesiu...

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  20. A hard water sample contains magnesium bicarbonate only. 100 ml of the...

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