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Glauber's salt is...

Glauber's salt is

A

`Na_(2)CO_(3).10H_(2)O`

B

`Na_(2)SO_(4).10H_(2)O`

C

`FeSO_(4).7H_(2)O`

D

`CuSO_(4).5H_(2)O`

Text Solution

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The correct Answer is:
B
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8.0575xx10^(-2) kg of Glauber's slat is dissolved in water to obtain 1 dm^(3) of a solution of density 1077.2 kg m^(-3) . Calculate the molarity, molality and mole fraction of Na_(2)SO_(4) in solution.

On the basis of its unit cell structure, Glauber's salt (crystal-line solution sulphate, NaSO_(4).10H_(2)O ) belongs to the

40.25g of Glauber's salt (Na_(2)SO_(4).10H_(2)O) is dissolved in water to obtain 500mL of solution of density 1077.5gdm^(-3) . The molality of Na_(2)SO_(4) in solution is about:

Assming complete dissociation, Calculate the expected the expected freezing point of a solution prepared by dissolving 6.0 g of Glauber's salt. Na_(2)SO_(4). 10H_(2)O in 0.1 kg of water. (Given value of K_(f)=1.86 K kg mol^(-1)) .

Define (i) Mole fraction (ii) Molality (iii) Raoult's law (b) Assuming complete dissociation, calculate the expected freezing point of a solution prepared by dissolving 6.00 g of Glauber's salt, Na_(2)SO_(4).10 H_(2)O in 0.100 kg of water. ( K_(f) for water = 1.86 K kg "mol"^(-1) , Atomic massess : Na=23, S=32, O=16 , H=1)

Why the solubility of Glauber,s salt (Na_(2)SO_(4)10 H_(2)O) first increases up to 32.4^(@)C and then decreases ?

CENGAGE CHEMISTRY-S-BLOCK GROUP 1 - ALKALI METALS-Exercises Single Correct
  1. Which is an ore potssium?

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  2. Chile salpeter is

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  3. Glauber's salt is

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  4. Which of the alkali metals have the highest density ?

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  5. Causticisation process is used for the preparation of

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  6. A sodium fire in the laboratory is extinguished by

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  7. The densities of Li, Na and K followed the order

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  8. The correct order of mobility of alkali metal ions in aqueous solution...

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  9. Which of the following elements combines directly with nitrogen to for...

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  10. When is a cation highly polarising? Which alkali metal cation has the ...

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  11. Which of the following carbonates does not evolve CO(2) on heating ?

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  12. The metallic lustre of sodium is explanined by the presence of

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  13. Which of the following is not a characteristic of alkali metals ?

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  14. A neutral white sodium salt (A) on heating liberates a gas (B), leavin...

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  15. The pairs of compounds which cannot exist together in aqueous solution...

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  16. Which of the following is the strongest reducing agent in aqueous medi...

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  17. The product of electrolysis of an aqueous solution of K(2)SO(4) using ...

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  18. Potassium gives a -------- colour to the Bunsen flame.

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  19. Which of the following is strongly hydrated in aqueous solution ?

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  20. When an aqueous of potassium ethanote is electrolysed ?

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