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Calculate the mass of oxalic acid (H(2)C...

Calculate the mass of oxalic acid `(H_(2)C_(2)O_(4))` which can be oxidised to `CO_(2)` by `100.0mL` of `MnO_(4)^(-)` solution, `10 mL` of which is capable of oxidising `50.0mL` of `1.0NI^(-)` to `I_(2)`?

A

45g

B

22.5g

C

30g

D

12.25g

Text Solution

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The correct Answer is:
B
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Calculate the mass of oxalic (H_(2)C_(2)O_(4).2H_(2)O) which can be oxidised to CO_(2) by 100 mL of MnO_(4)^(-) (acidic) solution, 10 mL of which are capable of oxidising 50.0 mL of 1.0 m I^(-) to I_(2) . Also calculate the weight of FeC_(2)O_(4) oxidised by same amount of MnO_(4)^(-) .

Calculate the number of molecules of oxalic acid (H_(2)C_(2)O_(4).2H_(2)O) in 100 mL of 0.2 N oxalic acid solition.

Knowledge Check

  • What weight of oxalic acid (H_(2)C_(2)O_(4)2H_(2)O) is required to prepare 1000mL of N//10 solution?

    A
    `9.0g`
    B
    `12.6g`
    C
    `6.3g`
    D
    `4.5g`

  • The mass of oxalic acid crystals (H_(2)C_(2)O_(4).2H_(2)O) required to prepare 50 mL of a 0.2 N solution is:

    A
    (a)4.5 g
    B
    (b)6.3 g
    C
    (c )0.63 g
    D
    (d)0.45 g

  • The volume of 0.1M oxalic acid that can be completely oxidised by 20mL of 0.025M KMnO_(4) solution is

    A
    `25mL`
    B
    `12.5mL`
    C
    `37.5mL`
    D
    `125mL`

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    Calculate the number of molecules of exalic acid (C_(2)H_(2)O_(2).2H_(2)O) in 100 mL of 0.2 N oxalic acid

    1.8 g of oxalic acid (H_(2)C_(2)O_(4)) is dissolved in 200 mL of a solution. Find out the molarity of the resultant solution.

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