Home
Class 12
CHEMISTRY
In a given sample of H(2)O(2) each 100 m...

In a given sample of `H_(2)O_(2)` each 100 mL of solution contains 68 mg of `H_(2)O_(2)`. The molarity of the solution is

A

`0*02 M`

B

`0*2 M`

C

`2 M`

D

`20 M`

Text Solution

Verified by Experts

The correct Answer is:
A
Molarity = `("Mass of solute in g in 1 L of solution")/("Mol. Mass")`
`=(68xx1000)/(1000xx100)xx(1)/(32)=0.02 M`
Promotional Banner

Topper's Solved these Questions

  • SOME BASIC CONCEPTS OF CHEMISTRY

    DINESH PUBLICATION|Exercise REVISION QUESTIONS FROM COMPETITIVE EXAMS|150 Videos

  • SOME BASIC CONCEPTS OF CHEMISTRY

    DINESH PUBLICATION|Exercise SELECTED STRIGHT OBJECTIVE TYPE MCQs|42 Videos

  • SOLUTIONS

    DINESH PUBLICATION|Exercise ULTIMATE PREPARATORY PACKAGE|10 Videos

  • SURFACE CHEMISTRY

    DINESH PUBLICATION|Exercise BRAIN STORMING MULTIPLE CHOICE QUESTIONS (MCQs)|8 Videos

Similar Questions

Explore conceptually related problems

H_(2)O_(2) solution used for hair bleacging is sold as a solution of approximately 5.0 g H_(2)O_(2) per 100 mL of the solution. The molecular mass of H_(2)O_(2) is 34. The molarity of this solution is approximately

10mL of a solution of H_(2)O_(2) liberated 0.5 g of iodine from Kl solution. The percentage of H_(2)O_(2) in the solution is:

A 1.00 g sample of H_(2)O_(2) solution containing x percent H_(2)O_(2) by weight required x ml of a KMnO_(4) solution for complete oxidation under acidic condition. Calculate normality of KMnO_(4) solution.

When 7.1 gm Na_(2)SO_(4) ( molecular mass 142 ) dissolves in 100 ml H_(2)O ,the molarity of the solution is

H_(2)O_(2) is sold as a solution of approximately 5.0gH_(2)O_(2) per 100 ml of the solution. The molarity of this solution is approximately

DINESH PUBLICATION-SOME BASIC CONCEPTS OF CHEMISTRY-ULTIMATE PREPARATORY PACKAGE
  1. In a given sample of H(2)O(2) each 100 mL of solution contains 68 mg o...

    Text Solution

    |

  2. A flask contains 2.0xx10^(13) molecules of CO(2). To this 1.5xx10^(14)...

    Text Solution

    |

  3. A flask contains 3.0xx10^(16) atoms of He. From This 6.6xx10^(15) atom...

    Text Solution

    |

  4. If one mole of rupees is distributed equally amongst all the poputlati...

    Text Solution

    |

  5. Polyethene can be produced from calcium carbide according to the follo...

    Text Solution

    |

  6. If law of conservation of mass holds good, 2.00 g of Na(2)SO(4) will r...

    Text Solution

    |

  7. If atomic mass of carbon was set at 100 u, what would be the value of ...

    Text Solution

    |

  8. A borane on analysis was found to contain 88.45% boron. Its empirical ...

    Text Solution

    |

  9. A sample of pure compound contains 2.04 g of sodium, 2.65xx10^(22) ato...

    Text Solution

    |

  10. A purified cytochrome protein was found to contain 0.376 % iron. What ...

    Text Solution

    |

  11. A purified pepsin was subjected to amino acid analysis. The amino acid...

    Text Solution

    |

  12. A peroxidase enzyme isolated from red blood cells was found to contain...

    Text Solution

    |

  13. A sample of hydrolysed potato starch is found to contain 0.086% phosph...

    Text Solution

    |

  14. Manganese forms non-stoichiometric oxides having the gereral formula f...

    Text Solution

    |

  15. Before 1961, an atomic mass unit scale was used whose basis was an ass...

    Text Solution

    |

  16. At one time, there was a atomic mass scale on the assignment of the va...

    Text Solution

    |

  17. A flask contains 10^(20) atoms of He (At. Mass =4) at S.T.P. (760 mm H...

    Text Solution

    |

  18. Eq. mass of A(x)B(y) is

    Text Solution

    |

  19. According to Dulong and Petit's rule, in case of solid elements. App...

    Text Solution

    |

  20. Out of atomic mass, mass number and atomic number, the physical quanti...

    Text Solution

    |

  21. Law of constant composition doesnot hold good for

    Text Solution

    |