Home
Class 11
CHEMISTRY
The mass of one mole of proton and elect...

The mass of one mole of proton and electron is

A

`6.023xx10^(23)" gm and 0.55 mg"`

B

`"1.008 gm and 0.55 mg"`

C

`9.1xx10^(-28)"kg and 0.55 gm"`

D

`"2 g and "9.1xx10^(-28)gm`

Text Solution

Verified by Experts

The correct Answer is:
B

Mass of one mole of protons
`1.672xx10^(-24)xx6.023xx10^(23)gm`
`=1.008 gm`
Mass of one mole of electrons
`=9.1xx10^(-28)xx6.023xx10^(23)gm`
`=0.55xx10^(-3)gm=0.55mg`
Promotional Banner

Topper's Solved these Questions

  • SOME BASIC CONCEPTS OF CHEMISTRY

    NARAYNA|Exercise EXERCISE - IV|43 Videos
  • SOME BASIC CONCEPTS OF CHEMISTRY

    NARAYNA|Exercise EXERCISE - II (H.W)(METHODS OF EXPRESSING CONCENTRATION)|14 Videos
  • SOME BASIC CONCEPTS IN CHEMISTRY STOICHIOMETRY (PART-I)

    NARAYNA|Exercise All Questions|555 Videos
  • SOME BASIC PRINCIPLES AND TECHNIQUES

    NARAYNA|Exercise EXERCISE -IV (QUALITATIVE AND QUANTITATIVE ANALYSIS OF ORGANIC OF COMPOUNDS)|8 Videos

Similar Questions

Explore conceptually related problems

The mass of one mole of electron is

The mass of a H-atm is less than the sun f the masses of a proton and electron. Why is this?

The mass of half mole of electrons is about (Given: Mass of electron =9.1 xx10^(-28) g)

The mass of one mole of a substance in grams is called its

(i) Calculate the number of electrons which will together with one gram . (ii) Calculate the mass and charge on one mole of electrons .

NARAYNA-SOME BASIC CONCEPTS OF CHEMISTRY-EXERCISE - III
  1. 25 g of MCl(4) contains 0.5 mole chlorine then its gram molecular weig...

    Text Solution

    |

  2. The mass of one mole of proton and electron is

    Text Solution

    |

  3. The concentration unit, independent of temperature would be

    Text Solution

    |

  4. The largest number of molecules is in:

    Text Solution

    |

  5. ''Equal volume of gases under similar conditions of pressure and tempe...

    Text Solution

    |

  6. Concentrated aqueous solution of sulphuric acid is 98 % by mass and ha...

    Text Solution

    |

  7. An element X has the following isotopic composition : .^(200)X:90%,"...

    Text Solution

    |

  8. What will be the volume of 12 M solutions, if it is equivalent to 240 ...

    Text Solution

    |

  9. The equivalent weight of a metal is 9 and vapour density of its chlori...

    Text Solution

    |

  10. During electrolysis of water, the volume of oxygen liberate is 2.24 dm...

    Text Solution

    |

  11. Number of atoms in 560 g of Fe ("atomic mass 56 g mol"^(-1))

    Text Solution

    |

  12. What volume of oxygen gas (O(2)) measured at 0^(@)C and 1 atm is neede...

    Text Solution

    |

  13. How many moles of lead (II) chloride will be formed from a reaction be...

    Text Solution

    |

  14. Volume occupied by one molecule of water (density = 1 g cm^(-3))

    Text Solution

    |

  15. The molarity of a solution containing 5.0 g of NaOH in 200 mL solution...

    Text Solution

    |

  16. x moles of potassium dichromate oxidise 1 mole of ferrous oxalate, in ...

    Text Solution

    |

  17. 10 g of hydrogen and 64 g of oxygen were filled in a steel vessel and...

    Text Solution

    |

  18. The number of atoms in 0.1 mol of a triatomic gas is:

    Text Solution

    |

  19. Mole fraction of the solute in a 1 molal aqueous solution is :

    Text Solution

    |

  20. Which has maximum number of molecules among the following?

    Text Solution

    |