Home
Class 12
CHEMISTRY
When 25 g of Na(2)SO(4) is dissolved in...

When 25 g of `Na_(2)SO_(4)` is dissolved in `10^(3)` Kg of solution, its concentration will be

A

` 2.5 ` ppm

B

`25 ` ppm

C

` 250 ` ppm

D

`100` ppm

Text Solution

Verified by Experts

The correct Answer is:
B
When a solute is present in very smaller amounts (trace quantities), the concentration is expressed in ppm.
`"ppm of A"=("mass of components")/("total mass of solution")xx10^(6)`
`=(0.025)/(10)xx10^(6)=25ppm`
Promotional Banner

Topper's Solved these Questions

  • AIIMS 2009

    AIIMS PREVIOUS YEAR PAPERS|Exercise CHEMISTRY|60 Videos

  • AIIMS 2011

    AIIMS PREVIOUS YEAR PAPERS|Exercise Chemistry|60 Videos

Similar Questions

Explore conceptually related problems

When 0.5 gram of BaCI_(2) is dissolved in water to have 10^(6) gram of solution. The concentration of solution is:

Define a solution. If 10 mL of H_(2)SO_(4) are dissolved in 90 mL of water, calculate concentration of solution.

If 1.34g Na_(2)C_(2)O_(4) is dissolved in 500 mL of water and this solution is titrated with M/10 KMnO_(4) solution in acidic medium, the volume of KMnO_(4) used is :

When SO_(2) is passed into an Na_(2)CO_(3) solution, it produces

14.2 g Na_2SO_4 is present in 10^2 kg water. Its concentration in ppm is

AIIMS PREVIOUS YEAR PAPERS-AIIMS 2010-CHEMISTRY
  1. Compound A (molecular formula C(3)H(8)O)is treated with acidified pota...

    Text Solution

    |

  2. Assume that you are travelling at a speed of 90 km/h in a small car wi...

    Text Solution

    |

  3. When 25 g of Na(2)SO(4) is dissolved in 10^(3) Kg of solution, its co...

    Text Solution

    |

  4. Degree of unsaturation of A = 2, it contains no double or triple bonds...

    Text Solution

    |

  5. The shape and hybridisation of some xenon oxyfluorides are given. Choe...

    Text Solution

    |

  6. The standard half-cell reduction potential for Ag'|Ag is 0.7991 V at 2...

    Text Solution

    |

  7. Which of the following acids will not evolve H(2) gas on reaction with...

    Text Solution

    |

  8. The major product of the following reaction is

    Text Solution

    |

  9. Stomach acid, a dilute solution of HCl in water, can be neutralized by...

    Text Solution

    |

  10. For the electrochemical cell, (M)|M^(+))||(X^(-)|X). E^(@)(M^(+)//M)...

    Text Solution

    |

  11. Which is optically inactive?

    Text Solution

    |

  12. Assertion : Magnesium is extracted by the electrolysis of fused mixtur...

    Text Solution

    |

  13. Assertion (A) : The equilibrium constant is fixed and characteristic f...

    Text Solution

    |

  14. Assertion : PCl(5) is covalent in gaseous and liquid state but ionic i...

    Text Solution

    |

  15. Statement-1: Zinc displaces copper from copper sulphate solution. St...

    Text Solution

    |

  16. Assertion : underset("-carbethoxy- 2-butenoic acid.")(CH-underset(COOC...

    Text Solution

    |

  17. Assertion: Helium has the highest value of ionisation energy among all...

    Text Solution

    |

  18. Assertion : The nuclear isomers are the atoms with the same atomic num...

    Text Solution

    |

  19. Assertion : Conductivity of silicon increases by doping it with group-...

    Text Solution

    |

  20. Assertion : The overall order of the reaction is the sum of the expone...

    Text Solution

    |