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A hydrate of Na(2)SO(3) completely loses...

A hydrate of `Na_(2)SO_(3)` completely loses 22.2% of water by mass on strong heatin. The hydrate is-

A

`Na_(2)SO_(3)*4H_(2)O`

B

`Na_(2)SO_(3)*6H_(2)O`

C

`Na_(2)SO_(3)*H_(2)O`

D

`Na_(2)SO_(3)*2H_(2)O`

Text Solution

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The correct Answer is:
D
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Find the molarr mass of Na_(2)SO_(4) .

3g of hydrated caclium chloride yields 1.52 g of the anhydrous salt on heating. What is the percentage of water present in the hydrated salt? Find the quantity of water associated per mole of the anhydrous salt.

Knowledge Check

  • Na_2SO_4 is

    A
    An acidic salt
    B
    A neutralized salt
    C
    An alkaline salt
    D
    None of these

  • One hydrated salt Na_2CO_3.xH_2O undergoes 63% loss in mass on heating and become anhydrous The value of X is

    A
    10
    B
    12
    C
    8
    D
    18

  • 25.3g of Na_(2)CO_(3) is dissolved in enough water to make 250 ml of solution. If sodium carbonate dissociate completely, molar concentration of sodium ion, Na^(+) and carbonate ions, CO_(3)^(2-) are respectively-

    A
    0.955(M) and 1.910(M)
    B
    1.910(M) and 0.955(M)
    C
    1.90(M) and 1.910(M)
    D
    0.477(M) and 0.477 (M)

    • Similar Questions

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    When a mixture of NaCl and NaBr is heated with H_(2)SO_(4) , the halogen components are liberated as their hydracids leaving Na_(2)SO_(4) as the residue. In an experiment, the mass of Na_(2)SO_(4) left is equal to the mass of (NaCl+NaBr) taken at the begining of the experiment. calculate the percentages of NaCl and NaBr in the given mixture.

    When a mixture of KI and KCl is heated repeatedly with H_(2)SO_(4) , iodine escapes completely and K_(2)SO_(4) is produced quantitatively. In case of such a mixture, it is observed that the mass of K_(2)SO_(4) is equal to the mass of the mixture of KI and KCl taken. what is the ratio of the masses of KI and KCl in this mixture?

    9.7g of hydrated copper sulphate on heating loses 3.5 g of water. What is the percentage of water of crystallization?

    On heating 1.763 g of hydrated BaCI_2 to dryness, 1.505g of anhydrous salt is left. What is the formula of hydrated salt?

    A 2.0g mixture of Na_(2)CO_(3) and NaHCO_(3) suffered a loss of 0.12g on heating. Percentage of Na_(2)CO_(3) in the mixture-

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