An aqueous solution of 2.45% by weight H2SO4 has a specific gravity of 1.011. The composition expressed in normality is______________?

Related Mcqs:

1. 80 kg of Na2SO4 (molecular weight = 142) is present in 330 kg of an aqueous solution. The solution is cooled such that. 80 kg of Na2SO4 .10H2O crystals separate out. The weight fraction of Na2SO4 in the remaining solution is_________________?

   A. 0.00
   B. 0.18
   C. 0.24
   D. 1.00

2. Na2SO4. 10H2O crystals are formed by cooling 100 Kg of 30% by weight aqueous solution of Na2SO4. The final concentration of the solute in the solution is 10%. The weight of crystals is________________?

   A. 20
   B. 32.2
   C. 45.35
   D. 58.65

3. Specific gravity on API scale is given by the relation (where, G = specific gravity at 15.5°C) ?

   A. °API = 200(G – 1)
   B. °API = (141.5/G) – 131.5
   C. °API = (140/G) – 130
   D. °API = 145 – (145/G)

4. The weight fraction of methanol in an aqueous solution is 0.64. The mole fraction of methanol XM satisfies________________?

   A. XM < 0.5
   B. XM = 0.5
   C. 0.5 < XM < 0.64
   D. XM ≥ 0.64

5. Normality of a solution does not change with the increase in the __________________?

   A. Pressure
   B. Temperature
   C. Solute concentration
   D. Dilution of the solution

6. For an ideal solution, the total vapor pressure varies _____________ with the composition (expressed as mole fraction)?

   A. Inversely
   B. Exponentially
   C. Linearly
   D. Negligibly

7. Acidity or alkanity of a solution is expressed by its pH value, which is defined as (where, [H+] = hydrogen ion concentration in the solution) ?

   A. log (1/H+)
   B. – log (1/H+)
   C. 1/log H+
   D. None of these

8. One of the specific gravity scales is “Brix” (used specifically for sugar solution). It is defined as ______________?

   A. Brix = (400/G) – 400
   B. Brix = 200 (G-1)
   C. Brix = 145 – (145/G)
   D. None of these

9. Increasing the temperature of an aqueous solution will cause decrease in its________________?

   A. Molality
   B. Mole fraction
   C. Weight percent
   D. Molarity

10. In a binary liquid system, the composition expressed as _______________ is independent of the temperature & pressure?

    A. Kg of solute/kg of solvent
    B. Kg-mole of solute/kg-mole of solvent
    C. Kg-mole of solute/1000 kg of solvent
    D. All A., B. & C.