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 :

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) ?

The amount of oxalic acid required to prepare 300 mL of 2.5 M solution is : (molar mass of oxalic acid = 90 g mol^(–1) ) :

What mass of H_(2)C_(2)O_(4). 2H_(2)O (mol.mass=126) should be dissoved in water to prepare 250mL of centinormal solution which act as a reducing agent?

What mass of H_2C_2O_4. 2H_2O (mol.mass =126 ) should be dissolved in water to prepare 250mL of centinormal solution which act as a reducing agent ?

Calculate the molarity (M) of a solution of oxalic acid [(COOH)_(2) . 2H_(2) O] containing 12.6 g of the acid in 100 mL of the solution.

A solution of K_(2)cr_(2)O_(7) contanining 4.9 gL^(-1) is used to tirate H_(2)O_(2) solution contaning 3.4 gL^(-1) in acidic medium. What volume of K_(2)Cr_(2)O_(7) will be required to react with 20 mL of H_(2)O_(2) solution ? Also calculate the strength of H_(2)O_(2) in terms of available oxygen.

The number of moles of H_(2)O_(2) required to completely react with 400 ml of 0.5 N KMnO_(4) in acidic medium are

How many grams of borax (Na_2B_4O_7.10H_2O) are required to neutralise 25 " mL of " 0.2 M HCl and H_2SO_4 separately?

20 " mL of " H_(2)O_(2) is reacted completely with acidified K_(2)Cr_(2)O_(7) solution 40 " mL of " K_(2)Cr_(3)O_(7) solution was required to oxidised the H_(2)O_(2) completely. Also, 2.0 " mL of " the same K_(2)Cr_(2)O_(7) solution required 5.0 " mL of " a 1.0 M H_(2)C_(2)O_(4) solution to reach equivalence point. Which of the following statements is/are correct?

In a titration, H_(2)O_(2) is oxidised to O_(2) by MnO_(4)^(-) . 24 mL of 0.1M H_(2)O_(2) requires 16 mL of 0.1M MnO_(4)^(-) solution. Hence MnO_(4)^(-) changes to :