Home
Class 12
CHEMISTRY
To prepare solution of certain substance...

To prepare solution of certain substance, 300 gm is used for 25% solution and 400 gm for 40% solution, then what is the mass percentage of solute present in this solution mixture ?

A

`33.57`

B

`66.43`

C

`87.23`

D

`19.24`

Text Solution

Verified by Experts

The correct Answer is:
A
In solution - 1, mass of solute `= (25)/(100)xx300=75` gm
In solution - 2, mass of solute `=(40)/(100)xx400=160` gm
So, total mass of solute on mixing two solution is = 235 gm
So, total mass of solution = 700 gm
So, % solute present in final solution
`= (235)/(700)xx100=33.57%`
Promotional Banner

Topper's Solved these Questions

  • SOLUTIONS

    KUMAR PRAKASHAN|Exercise SECTION - E Assertion and Reason Type|5 Videos

  • SOLUTIONS

    KUMAR PRAKASHAN|Exercise SECTION - E MCQs asked in Competitive Exam|21 Videos

  • SOLUTIONS

    KUMAR PRAKASHAN|Exercise SECTION - D NCERT EXEMPLAR SOLUTION (Long Answer Type Questions)|7 Videos

  • SAMPLE QUESTION PAPER

    KUMAR PRAKASHAN|Exercise [PART-B] SECTION - C|2 Videos

  • SURFACE CHEMISTRY

    KUMAR PRAKASHAN|Exercise SECTION - E (MCQs asked in GUJCET/Board Exams)|52 Videos

Similar Questions

Explore conceptually related problems

A 1% solution of phenol is a

80 ml of solution contains 20 g of solute. Calculate the concentration in terms of mass by volume percentage of the solution.

A solution contains 50 g of comon salt in 200 g of water. Calculate the concentration in terms of mass by mass percentage of the solution?

KUMAR PRAKASHAN-SOLUTIONS -SECTION - E Multiple Choice Questions (MCQs)
  1. At 273 K temperature, if 10 gm glucose (p(1)), 10 gm urea (p(2)) and 1...

    Text Solution

    |

  2. If osmotic pressure of an aqueous solution of sucrose having concentra...

    Text Solution

    |

  3. To prepare solution of certain substance, 300 gm is used for 25% solut...

    Text Solution

    |

  4. 20% aqueous FeCl(3) solution has density of 1.1 gm/mL then molar conce...

    Text Solution

    |

  5. Give mole fraction of solute present in 1.00 m aqueous solution.

    Text Solution

    |

  6. Find out molarity of NO(3)^(-) ions in solution when mixing 2 litre 3 ...

    Text Solution

    |

  7. Which equimolal concentrated solution has highest freezing point ?

    Text Solution

    |

  8. Brass is mixture of …… metals.

    Text Solution

    |

  9. Bronze is mixture of ………. metals.

    Text Solution

    |

  10. …….. ppm of F^(-) ion in water can stop decay of teeth.

    Text Solution

    |

  11. German silver is a alloy of …… metal.

    Text Solution

    |

  12. ……. ppm concentration of flouride ion causes a stain of teeth.

    Text Solution

    |

  13. At certain temperature, vapour pressure of pure element A and B has 10...

    Text Solution

    |

  14. Four solution of K(2)SO(4) possess concentration of 0.1 m, 0.001 m and...

    Text Solution

    |

  15. Osmotic pressure of aqueous solution of urea is 500 mm at 283 K. If it...

    Text Solution

    |

  16. Which of the following aqueous solution has same osmotic pressure ? ...

    Text Solution

    |

  17. ……… solution has highest freezing point.

    Text Solution

    |

  18. If non ideal solution is prepared by mixing 30 mL CHCl(3) and 50 mL Ac...

    Text Solution

    |

  19. Density of solution prepared by dissolving 120 gm urea in 1000 gm wate...

    Text Solution

    |

  20. If 25 gram of Na(2)SO(4) is dissolved in 10^(3) kilogram solution, the...

    Text Solution

    |