50 ML Of 0.04 M Solution Of Sodium Sesquicarbonate (Na2CO3.NaHCO3.2H2O) Is Titrated With 0.05 M HCl. V1 mL Of HCl Is Used When Phenolphthalein Acts As Indicator And V2 mL Of HCl Is Used When Methyl Orange Is The Indicator In The Two Separate Titrations. The Two Titration Values V1and V2 differ By

A mixture of K₂C₂O₄ and KHC₂O₄ required equal volumes of 0.1 M K₂Cr₂O₇ for oxidation and 0.1 M NaOH for neutralization in separate titrations. The molar ratio of K₂C₂O₄ and KHC₂O₄ in the mixture is :

An equilmolar mixture of Na₂C₂O₄ and H₂C₂O₄ required V₁L of 0.1 M KMnO₄ in acidic medium for complete oxidation. The same amount of the mixture required V₂L of 0.1 M NaOH for neutralization. The ratio of V₁ to V₂ is

In an iodometric estimation, the following reactions occur

0.15 mol of CuSO₄ of 80% purity was added to excess of KI solution and the liberated iodine required 12 mL 120mL of hypo. The molarity of hypo solution was

A mixture of NaOH and Na₂CO₃ required 25mL of 0.1 M HCl using phenolphthalein as indicator. However, the same amount of the mixture required 30mL of 0.1 M HCl when methyl orange was used as the indicator. The molar ratio of NaOH and Na₂CO₃ in the mixture was

A 1.70 g sample of H₂O₂ solution containing x% H₂O₂ by mass requires xmL of KMnO₄ solution for complete oxidation under acidic condition. The molarity of KMnO₄ solution is

What volume at STP of gaseous ammonia will be required to be passed into 100mL of 0.5 M H₂SO₄ to bring down its strength to 0.25 M?

20 mL of a solution containing Na₂CO₃ and NaHCO₃ requires 10 mL of 0.1 N H₂SO₄ for neutralization using phenolphthalein as an indicator. Methyl orange is then added when a further 10 mL of 0.2 N H₂SO₄ is required. Molar concentration of Na₂CO₃ and NaHCO₃ in the solution respectively are

A mixture containing 0.05 mol of K₂Cr₂O₇ and 0.02 mol of KMnO₄ was treated with excess of KI in acidic medium. The liberated iodine required 2.0 L of Na₂S₂O₃ solution for titration. Concentration of Na₂S₂O₃solution was

Calculate the molarity of KMnO₄ solution, 20 mL of which is just sufficient to oxidize 0.238 g of U⁴⁺ in acidic medium according to the reaction (atomic mass of U = 238)

0.5 g sample of oxalate salt required 30ml of 0.05 M KMnO₄ in acidic medium for complete oxidation. The percent of oxalate ion in the sample is