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A sample of hard water contains 122 p p ...

A sample of hard water contains `122 p p m` of `HCO_(3)^(ɵ)` ions,. What is the minimum weight of `CaO` required to remove ions completely from `1 kg` of such water sample?

A

244mg

B

168mg

C

122mg

D

56mg

Text Solution

Verified by Experts

The correct Answer is:
C
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NARAYNA-HYDROGEN & ITS COMPOUCDS-LEVEL V
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  4. Which of the following water smple has maxiumum degree of hardness?

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  5. The purity of H2O2 in a given sample is 85%. Calculate the weight of i...

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  7. Chemical A is used for water softening to remove temporary hardness. A...

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  8. which one of the following on oxidation gives H(2)O(2)?

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  9. Industrially H(2)O(2) is obtained from :

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  10. Oidentify the incrrect statement ?

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  11. when changes from gaseous phase to soild phase , which one of the foll...

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  12. The structure of H(2)O(2) is

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  13. Which of the following process uses water gas shift reaction?

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  14. which one of the following contains more number of peroxy linkages ?

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  15. (I). H(2)O(2) is non- linear compound (II) In H(2)O(2) , the hydroxy...

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  16. the dipole moment of H(2)O(2) is 2.1 D while thaat of water is 1.84 D ...

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  18. The H-OO bondangle and O-H bond lengths are 101.9^(@)and 98.8p, resect...

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  19. 10 volume H(2)O(2) means .

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  20. 34 g of H(2)O(2) is present in 1120 ml of H(2)O solution. This solutio...

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