Home
Class 12
CHEMISTRY
How much current in amperes should be pa...

How much current in amperes should be passed for 100s through acidified water to produce 174 mL electrolysed gas at STP?

Text Solution

Verified by Experts

Ratio of volumes of `H_(2)` to `O_(2)` evolved in electrolysis is `2:1`.
`therefore" Volume of "H_(2)=(2)/(3)xx174=116mL`
`"22400 mL "H_(2)" (STP) "-=2xx96500C" electricity."`
`therefore" 116 mL "H_(2)" (STP) "-=999.46C`
`Q=Ixxtor, 999.46=Ixx100 therefore I=9.99A`
Promotional Banner

Topper's Solved these Questions

  • ELECTROCHEMISTRY

    CHHAYA PUBLICATION|Exercise PRACTICE SET 4(Choose the correct alternative)|6 Videos

  • ELECTROCHEMISTRY

    CHHAYA PUBLICATION|Exercise PRACTICE SET 4(Answer the following questions)|14 Videos

  • ELECTROCHEMISTRY

    CHHAYA PUBLICATION|Exercise EXERCISE (SHORT ANSWER-TYPE QUESTIONS)|62 Videos

  • D - AND F - BLOCK ELEMENTS

    CHHAYA PUBLICATION|Exercise PRACTICE SET 8 (Answer the following questions)|10 Videos

  • ENVIRONMENTAL CHEMISTRY

    CHHAYA PUBLICATION|Exercise PRACTICE SET 14(Answer the following questions)|6 Videos

Similar Questions

Explore conceptually related problems

5 A current is passed for 5 min through acidified water at NTP, producing 175 mL H_(2) at the cathode. Find the electrochemical equivalent of H_(2) .

H_(2)S gas is passed through chlorine -water .

If a current of 10 A is passed through acidulated water for 100 s then what volume of electrolytic gas at STP will be produced?

What should be the current strength to produce 1 mL H_(2) passed through acidified water for 5 h?

If 4A of electric current is passed through an acidulated water for 30 min, then the volume of H_(2) gas to be produced at STP is -

A current of 10A was allowed to pass through acidulated water for 3 min 13s. What mass of water will be decomposed?

A current of 35 ampere is passed through acidulated water for 5 minute 50 second. How many gram of hydrogen will be liberated at the cathode ? [1F = 96500 coulomb]

If an electric current of 10mA is passed through an aqueous solution of NaCl , then time required to produce 0.01 mol of H_(2) gas at the cathode is -

Calculate the weight of water decomposed, if 5 ampere current is passed through acidified water for 5 h?

The same amount of electricity is passed through acidified water and an aqueous solution of a metal chloride . As a result 7.4L H_(2) , gas at STP in the first case and 21 g metal in the second case are produced . Calculate the equivalent weight of the metal ? If the specific heat of the metal is 0.094 , then find the atomic weight of the metal ?

CHHAYA PUBLICATION-ELECTROCHEMISTRY-NUMERICAL PROBLEMS
  1. Calculate the weight of water decomposed, if 5 ampere current is passe...

    Text Solution

    |

  2. 5 A current is passed for 5 min through acidified water at NTP, produc...

    Text Solution

    |

  3. How much current in amperes should be passed for 100s through acidifie...

    Text Solution

    |

  4. How much electricity is required to coat an iron cup with 2.16 g of Ag...

    Text Solution

    |

  5. At STP, 2.8L of oxygen is produced at the anode, during electrolysis o...

    Text Solution

    |

  6. Find the number of Al-atoms, discharged when 2 C electricity is passed...

    Text Solution

    |

  7. Find the amount of Fe^(2+) and Fe^(3+) discharged (in grams) by 1 fara...

    Text Solution

    |

  8. If 200 A current is passed through molten NaCl for 1 min , how many mo...

    Text Solution

    |

  9. If 10 C of electricity is passed through an aqueous solution of a meta...

    Text Solution

    |

  10. The cost of electrical energy in the production of "x L H"(2) at STP...

    Text Solution

    |

  11. Calculate the charge of 0.1 mol of P(2)O(7)^(4-) ion.

    Text Solution

    |

  12. To reduce 1 mol Cr(2)O(7)^(2-) to Cr^(3+) , find the amount of ele...

    Text Solution

    |

  13. The same amount of electricity required to produce 10g Ag from AgNO(3...

    Text Solution

    |

  14. 3.7 A current was passed for 6h through 0.5L 2( M ) solution of Ni(N...

    Text Solution

    |

  15. 27g Al is discharged , when 0.5 A current is passed through molten AlC...

    Text Solution

    |

  16. Calculate the time to electroplate a metal surface of area 80 cm^(2) ...

    Text Solution

    |

  17. If 1 mol electron is passed through each of AgNO(3) , CuSO(4) and A...

    Text Solution

    |

  18. Two electrolytic cells A and B contain gold salt and copper sulphate s...

    Text Solution

    |

  19. The same amount of electricity is passed through acidified water and a...

    Text Solution

    |

  20. In an electrolytic cell , molten Al(2)O(3) is taken , through which a...

    Text Solution

    |