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A solution containing Na(2)CO(3) and NaO...

A solution containing `Na_(2)CO_(3)` and `NaOH` requires `300 ml` of `0.1 N HCl` using phenolphthalein as an indicator. Methyl orange is then added to the above titrated solution when a further `25 ml` of `0.2 N HCl` is required. The amount of `NaOH` present in solution is `(NaOH=40, Na_(2)CO_(3)=106)`

Text Solution

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The correct Answer is:
`Na_(2)CO_(3)=23.2` g/L, NaOH=22.28 g/L.
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A solution contains Na_(2)CO_(3) and NaHCO_(3). 10 mL of the solution required 2.5 mL "of" 0.1M H_(2)SO_(4) for neutralisation using phenolphthalein as indicator. Methyl orange is then added when a further 2.5 mL "of" 0.2M H_(2)SO_(4) was required. The amount of Na_(2)CO_(3) and NaHCO_(3) in 1 "litre" of the solution is:

Knowledge Check

  • A solution containing Na_(2)CO_(3) and NaOH requires 300ml of 0.1 N HCl using phenolphthalein as an indicator. Methyl orange is then added to the above titrated solution when a further 25ml of 0.2 N HCl is required . The amount of NaOH present in solution is ( NaOH = 40, Na_(2)CO_(3) = 106 )

    A
    0.6g
    B
    1.0 g
    C
    1.5 g
    D
    2.0 g

  • A solution containing Na_(2)CO_(3) and NaOH requires 300 mL of 0.1 N HCl using phenolphthalein as an indicator. Methyl orange is then added to above titrated solution when a further 25 mL of 0.2 N HCl is required. The amount of NaOH present in the original solution is :

    A
    0.5 g
    B
    1 g
    C
    2 g
    D
    4 g

  • A solution containing Na_(2)CO_(3) and NaOH requires 300 mL of 0.1 N HCl using phenolphthalein as an indicator. Methyl orange is then added to above titrated solution when a further 25 mL of 0.2 M HCl is required. The amount of NaOH present in the original solution is

    A
    0.5 g
    B
    1g
    C
    2g
    D
    4g