Home
Class 11
CHEMISTRY
A sample of phosphorus that weighs 12.4g...

A sample of phosphorus that weighs `12.4g` exerts a pressure 8 atm in a `0.821` litre closed vesel at `527^@ C`. The molecular formula of the phosphorus vapour is :

A

`P_(2)`

B

`P_(4)`

C

`P_(6)`

D

`P_(8)`

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • STOICHIOMETRY

    NARENDRA AWASTHI|Exercise Level 1 (Q.91 To Q.120)|30 Videos

  • STOICHIOMETRY

    NARENDRA AWASTHI|Exercise Level 1 (Q.121 To Q.150)|30 Videos

  • STOICHIOMETRY

    NARENDRA AWASTHI|Exercise Level 1 (Q.31 To Q.60)|30 Videos

  • SOLID STATE

    NARENDRA AWASTHI|Exercise Level 3 - Subjective Problems|1 Videos

  • THERMODYNAMICS

    NARENDRA AWASTHI|Exercise Level 3 - Match The Column|2 Videos

Similar Questions

Explore conceptually related problems

34.05 mL of phosphorus vapour weighs 0.0625 g at 546^(@)C and 0.1 bar pressure. What is the molar mass of phosphorus ?

34.05 mL of phosphorus vapour weighs 0.0625 g at 546 ∘ C and 0.1 bar pressure. What is the molar mass of phosphorus?

A certain sample of gas has a volume of 0.2 litre measured at 1 atm pressure and 0^(@)C . At the same pressure but at 273^(@)C , its volume will be

A sample of 16 g charcoal was brought into contact with CH_(4) gas contained in a vessel of 1 litre at 27^(@) C . The pressure of gas was found to fall from 760 to 608 torr. The density of chacoal sample is 1.6 g//m^(3) . What is the volume of the CH_(4) gas adsorbed per gram of the adsorbent at 608 torr and 27^(@)C ? 125 L//g , 16.25 mL//g , 26 mL//g , none of these .

Total number of moles of oxygen atoms in 3 litre O_3 (g) at 27^@ C and 8.21 atm are :

A gaseous compound is composed of 85.7% by mass carbon and 14.3% by mass hydrogen. Its density is 2.28 g/litre at 300 K and 1.0 atm pressure. Determine the molecular formula of the compound.

A solution containing 4.0 g of PVC in 2 liter of dioxane (industrial solvent ) was found to have an osmotic pressure 3.0 x 10^(-4) atm at 27^(@)C . The molar mass of the polymer (g/mol) will be :

At room temperature following traction goes to completion 2AB(g)+B_(2)(g)rarr2AB_(2)(s) AB_(2) is solid with negligble vapour pressure below 0^(@)C . At 300 K, the AB in the smaller flask exerts a pressure of 3 atm and in the larger flask B_(2) exerts a pressure of 1 atm at 400 K when they are separated out by a close valve, The gases are mixed by opening the stop cock and after the end of the reaction the flask are cooled to 250 K The final pressure is :

The gaseous decomposition reaction, A(g)rarr2B(g)+C(g) is observed to first order over the excess of liquid water at 25^(@)C . It is found that after 10 minutes the total pressure of system is 188 torr and after very long time it is 388 torr. The rate constant of the reaction (in hr^(-1)) is : [Given : vapour pressure of H_(2)O at 25^(@) is 28 torr (ln 2=0.7 , ln 3=1.1, ln10=2.3) ] a) 0.02 b) 1.2 c) 0.2 d) none of these

NARENDRA AWASTHI-STOICHIOMETRY-Level 1 (Q.61 To Q.90)
  1. 40 miligram diatomic volatile substance (X2) is converted to vapour th...

    Text Solution

    |

  2. Two elements X( atomic weight =75) and Y( atomic weight =16) combine t...

    Text Solution

    |

  3. A sample of phosphorus that weighs 12.4g exerts a pressure 8 atm in a ...

    Text Solution

    |

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

    Text Solution

    |

  5. 1. 44 gram if titanium (Ti) reacted with excess of O(2) and produce x ...

    Text Solution

    |

  6. Which statement is false for the balanced equation given below ? ...

    Text Solution

    |

  7. Which of the following statements is correct ?

    Text Solution

    |

  8. 2.0g of a sample contains mixture of SiO2 and Fe2O3. On very strong he...

    Text Solution

    |

  9. What volume of air at 1 atm and 273K containing 21% of oxygen by volum...

    Text Solution

    |

  10. For the reaction, 2Fe(NO3)+3Na2COrarrFe2(CO3)3+6NaNO3 initially 2.5 mo...

    Text Solution

    |

  11. How many of P4 can be produced by reaction of 0.10 moles Ca5(PO4)3F,0....

    Text Solution

    |

  12. Some older emergency oxygen masks contains potassium superoxide KO2 wh...

    Text Solution

    |

  13. The mass of N(2)F(4) produced by the reaction of 2.0 g of NH(3) ...

    Text Solution

    |

  14. Calculate the weight of lime (CaO) obtained by heating 200 kg of 95% p...

    Text Solution

    |

  15. Phospheric acid (H(3)PO(4)) perpared in two step process . ...

    Text Solution

    |

  16. 9 moles of "D" and 14 moles of E are allowed to react in a closed ves...

    Text Solution

    |

  17. The chief ore of Zn is the sulphide ZnS. The ore is concentrated by fr...

    Text Solution

    |

  18. 0.8 moles of a mixture of CO and CO2 requires exactly 40 gram of NaOH ...

    Text Solution

    |

  19. Silver oxide (Ag2O) decomposes at temperature 300^@C yielding matellic...

    Text Solution

    |

  20. Comprehension # 5 342 g of 20% by mass of Ba(OH)(2) solution (sp.gr....

    Text Solution

    |