In a test, alcohol is treated with equimolar mixture of concentrated HCl and anhydrous Zinc chloride. The solution immediately turned turbid the given alcohol is:
Calculate the mole fraction of water in a mixture of 12 g water, 108 g acetic acid and 92 g ethanol.
Choose the correct set of True/Fasle for following statements: (i) Silver chloride is more soluble in very concentrated sodium chloride solution than in pure water. (ii) The pH of a buffer solution does not change on addition of small amount of an acid or a base. (iii) Addition of NH_(4)Cl does not affect the pH of a solution of NH_(4)OH (iv) Degree of hydrolysis of ammonium acetate does not depend upon the concentration of ammonium acetate solution. (v) A mixture of acetic acid and sodium acetate can act as buffer solution.
When a equimolar mixture of Cu_(2) S and CuS is tirated with Ba(MnO_(4))_(2) in acidic medium, the final products cintain Cu^(2+) , So_(2) and Mn^(2+) . If the mol. Mass of Cu_(2) S, and Ba(MnO_(4))_(2) are M_(1) , M_(2) and M_(3) respectively then :
Why is HCl a stronger acid than acetic acid? Explain.
which of the following plots will obtained for a conductometric titration of strong acid against a weak base?
10 g mixture of K_(2)Cr(2)O_(7) and KMnO_(4) was treated with excess of KI in acidic medium. Iodine liberated 100 cm^(3) of 2.2 N sodium thiosulphate solution for titration. If the mass percent of KMnO_(4) in the mixture Z, then what is the value of 2Z/5 ?
In the titration of solution of a weak acid HA and NaOH, the pH is 5.0 after 10 mL of NaOH solution has been added and 5.60 after 20 mL NaOH has been added. What is the value of pK_(a) for HA?
1 mole of equimolar mixture of ferric oxalate and ferrous oxalate requires x mole of KMnO_4 in acidic medium for complete oxidation. x is :
Assertion: In the titration of Na_(2)CO_(3) with HCl using methyl orange indicator, the volume of acid required is twice that of the acid required using phenolphthalein as indicaton. Reason: Two moles of HCl are required for the complete neutralisation of one mole of Na_(2)CO_(3) .
