Home
Class 12
CHEMISTRY
In a pseudo first order hydrolysis of es...

In a pseudo first order hydrolysis of ester in water, the following results were obtained :
`{:(t(s),0,30,60,90),(["Ester"]("mol.L"^(-1)),0.55,0.31,0.17,0.085):}`
Calculate the average rate of reaction between the time interval 30 to 60s.

Text Solution

Verified by Experts

Average rate between the time interval 30-60s
`=(C_(2)-C_(1))/(t_(2)-t_(1))=(0.31-0.17)/(60-30)=(0.14)/(30)`
`=4.67xx10^(-3)"mol.L"^(-1).s^(-1)`
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL KINETICS

    CHHAYA PUBLICATION|Exercise HIGHER ORDER THINKING SKILL (HOTS) QUESTIONS|18 Videos

  • CHEMICAL KINETICS

    CHHAYA PUBLICATION|Exercise ADVANCED LEVEL NUMERICAL BANK|16 Videos

  • CHEMICAL KINETICS

    CHHAYA PUBLICATION|Exercise SOLVED NCERT TEXTBOOK PROBLEMS (NCERT INTEXT QUESTIONS)|21 Videos

  • BIOMOLECULES

    CHHAYA PUBLICATION|Exercise Practic Set 29|1 Videos

  • CHEMICAL THERMODYNAMICS

    CHHAYA PUBLICATION|Exercise Practice Set 6|15 Videos

Similar Questions

Explore conceptually related problems

In a pseudo first order hydrolysis of ester in water, the following results were obtained : {:(t(s),0,30,60,90),(["Ester"]("mol.L"^(-1)),0.55,0.31,0.17,0.085):} Calculate the pseudo first order rate constant for the hydrolysis of ester.

For the hydrolysis of methyl acetate in aqueous solution, the following results were obtained : {:(t//s,0,30,60),([CH_(3)COOH]//mol.L^(-1),0.60,0.30,0.15):} Calculate the average rate of reaction between the time interval 30 to 60 seconds [Given: log_(2) = 0.3010and log4=0.6021 ]

ArarrB+C , the following records are obtained : {:(t(s),0,900,1800),([A](mol.L^(-1)),50.8,19.7,7.62):} Show that the reaction follows the rate law of first order reaction .

For the hydrolysis of methyl acetate in aqueous solution, the following results were obtained : {:(t//s,0,30,60),([CH_(3)COOH]//mol.L^(-1),0.60,0.30,0.15):} Show that it follows pseudo first order reaction, as the concentration of water remains constant.

Hydrolysis of methyl acetate in aqueous solution has been studied by titrating the liberated acetic acid against sodium hydroxide. The concentration of the ester at different times is given below. {:("t(min)",0,30,60,90),(C("mol.L"^(-1)),0.8500,0.8004,0.7538,0.7096):} Show that it follows a pseudo first order reaction as, the concentration of water remain nearly constant (55"mol.L"^(-1)) , during the course of the reaction what is the value of k' in this equation ? Rate =k'[CH_(3)COOCH_(3)][H_(2)O]

For the decomposition of azoisopropane to hexane and nitrogen at 543 K , the following data are obtained. {:(t(s),P("mm Hg")),(0,35.0),(360,54.0),(720,63.0):} Calculate the rate constant.

The following data are obtained for the decomposition of H_(2)O_(2) " at " 25^(@)C : {:("Time (min)",0,10,20,30),(% "decomposed",0,37,60,75):} Calculate the order , rate constant and half -life of the reaction.

The rates of a first order reaction after 10mins and 20 mins from the commencement of the reaction are 0.04 mol.L^(-1).s^(-1) and 0.03 mol.L^(-1).s^(-1) respectively. Calculate half-life period of the reaction.

In the reaction , ArarrB concentration of A decreases from 0.35 (M) to 0.15 (M) in 30 min. Determine the average rate of reaction in the given interval considering the unit of time to be s .

CHHAYA PUBLICATION-CHEMICAL KINETICS-SOLVED NCERT TEXTBOOK PROBLEMS (NCERT EXERCISE QUESTIONS)
  1. A reaction is second order with respect to a reactant . How is the rat...

    Text Solution

    |

  2. What is the effect of temperature on the constant of reaction ? How ca...

    Text Solution

    |

  3. In a pseudo first order hydrolysis of ester in water, the following re...

    Text Solution

    |

  4. In a pseudo first order hydrolysis of ester in water, the following re...

    Text Solution

    |

  5. A reaction is first order in A and second order in B. Write the dif...

    Text Solution

    |

  6. A reaction is first order in A and second order in B. How is the ra...

    Text Solution

    |

  7. A reaction is first order in A and second order in B. How is the ra...

    Text Solution

    |

  8. In a reaction between A and B , the initial rate of reaction (r(0)) wa...

    Text Solution

    |

  9. The following results have been obtained during the kinetic studies of...

    Text Solution

    |

  10. The reaction between A and B is first order with respect to A and zero...

    Text Solution

    |

  11. Calculate the half-life of a first order reaction from their rate con...

    Text Solution

    |

  12. Calculate the half-life of a first order reaction from their rate con...

    Text Solution

    |

  13. Calculate the half-life of a first order reaction from their rate con...

    Text Solution

    |

  14. The half-life for radioactive decay of .^(14)C is 5730 years . An arch...

    Text Solution

    |

  15. The experimental data for decomposition of N(2)O(2) [2N(2)O(5)rarr4NO(...

    Text Solution

    |

  16. The experimental data for decomposition of N(2)O(2) [2N(2)O(5)rarr4NO(...

    Text Solution

    |

  17. The experimental data for decomposition of N(2)O(2) [2N(2)O(5)rarr4NO(...

    Text Solution

    |

  18. The experimental data for decomposition of N(2)O(2) [2N(2)O(5)rarr4NO(...

    Text Solution

    |

  19. The experimental data for decomposition of N(2)O(2) [2N(2)O(5)rarr4NO(...

    Text Solution

    |

  20. The experimental data for decomposition of N(2)O(2) [2N(2)O(5)rarr4NO(...

    Text Solution

    |