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The enthalpies of neutralisation of a st...

The enthalpies of neutralisation of a string acid `HA` and a weaker acid `HB` by `NaOH` are `-13.7` and `-12.7 kcal Eq^(-1)`, respectively. When one equivalent of `NaOH` is added to a mixture containing one equivalent of `HA` and `HB`, the enthalpy change was `-13.5kcal`. In what ratio is the base distributed between `HA` and `HB`?

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The correct Answer is:
`4:1`
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P BAHADUR-THERMOCHEMISTRY-Exercise 9 Advance numerical problems
  1. Given the following standard heats of reactions: (a) heat of formati...

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  2. Calculate the heat of neutralisation from the following data: 200mL ...

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  3. The enthalpies of neutralisation of a string acid HA and a weaker acid...

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  4. Two solutions initially at 25^(@)C were mixed in an insulated bottle. ...

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  5. A monobasic acid is dissociated to 25% in 0.1N solution. When 100mL of...

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  6. The dissolution of 1 mol e of NaOH((s)) in 100 mol e of H(2)O((l)) giv...

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  7. The integral enthalpy of solution in kJ of one mole of H(2)SO(4) disso...

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  8. The heat of solution of NH(4)NO(3) in water was determined by measuri...

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  9. An athelet takes 20 breaths per minute at room temperature. The air in...

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  10. A slice of banana weighing 2.502 g was burnt in a bomb calorimeter pro...

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  11. A person inhales 640g of O(20 per day. If all the O(2) is used for co...

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  12. The heat of formation of carbon dioxide from graphite at 15^(@)C and c...

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  13. When 12.0g of carbon reacted with oxygen to form CO and CO(2) at 25^(@...

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  14. The heat of combustion of ethane gas is 368 kcal //mol. Assuming that ...

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  15. The commercial production of water gas utilizes the reaction under sta...

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  16. From the following data of DeltaH, of the following reaction, C((s))...

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  17. When 100 c.c. of a mixture of methane (CH(4)) and ethylene (C(2)H(4)) ...

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  18. 1.0g magnesium atoms in vapour phase absorbs 50.0kJ of energy to conv...

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  19. Calculate the enthalpy change when 6.80g of NH(3) is passed over heate...

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  20. 1.00litre sample of a mixture of CH(4(g)) and O(2(g)) measured at 25^(...

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