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Home Chemical Engineering Stoichiometry See What Others Are Saying!
  • Question
  • 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


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

  • Correct Answer
  • 0.18 


  • More questions

    • 1. Wall thickness of schedule 40 pipe as compared to that of schedule 80 pipe is

    • Options
    • A. more
    • B. less
    • C. same
    • D. cither (a) or (b); depends upon the I.D. of the pipe
    • Discuss
    • 2. Aniline point of the diesel is a measure of its __________ content.

    • Options
    • A. aromatic
    • B. paraffin
    • C. olefin
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    • 3. Dry powdery solid materials are transported by a __________ conveyor.

    • Options
    • A. belt
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    • C. screw
    • D. none of these
    • Discuss
    • 4. Size reduction does not occur due to compression in case of

    • Options
    • A. rod mills
    • B. gyratory crushers
    • C. jaw crushers
    • D. smooth roll crushers
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    • 5. Thorium can be converted into U-233 in a __________ reactor.

    • Options
    • A. liquid metal cooled
    • B. fast breeder
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    • 6. A rivetted joint does not fail by __________ of rivets.

    • Options
    • A. tearing
    • B. shearing
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    • Discuss
    • 7. The synthetic fibres produced from __________ are known as rayon.

    • Options
    • A. lignin
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    • C. polyamides
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    • Discuss
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    • Options
    • A. elbow
    • B. union
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    • Discuss
    • 9. Sucrose content in the raw juice extracted from sugar cane is about __________ percent.

    • Options
    • A. 1 - 2
    • B. 15 - 20
    • C. 50 - 60
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    • 10. The ratio of volume of an atom to that of its nucleus is

    • Options
    • A. 1012
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