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A white coloured powder is used by docto...

A white coloured powder is used by doctors for supporting fractured bones.
(a) Write chemical name and formula of the powder.
(b) When this white powder is mixed with water a hard solid mass is obtained. Write balanced chemical equation for the change.

Text Solution

Verified by Experts

(a) Calcium sulphate hemihydrate.
`CaSO_(4).(1)/2H_(2)O`
(b) `CaS_(4).(1)/2H_(2)O+3/2H_(2)OtoCaSO_(4).2H_(2)O`
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CPC CAMBRIDGE PUBLICATION-ACIDS, BASES AND SALTS-ADDITIONAL QUESTIONS (Answer the following questions :)
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  2. On the basis of origin, how acids are classified?

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  3. Why vinegar is used in pickling?

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  4. Define dilution.

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  5. (a) Write the common name of CaOCl2 How it is prepared? Write the chem...

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  6. W'hat are organic acids? Give two examples.

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  7. How does a strong acid differ from a concentrated acid?

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  8. Why should curd and sour substances not be kept in brass and copper ve...

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  9. Why should acids be handled with care?

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  10. While diluting an acid, why is it recommended that the acid should be ...

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  11. 15 ml of water and 10 ml of Sulphuric acid are mixed in a beaker. (...

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  12. A white coloured powder is used by doctors for supporting fractured bo...

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  13. (i) Write the name given to bases that are highly soluble in water. Gi...

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  16. Sodium hydrogen carbonate is a basic salt. Justify the statement how i...

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