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Recent content by Browny

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    HI

    HI
    • Browny
    • Profile post
  2. B

    Physics: Post your doubts here!

    What was the answer for the diffraction grating double slit question where they asked which had greater separation between fringes and which was sharper?
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    Physics 12 GT

    What was the answer for the diffraction grating double slit question where they asked which had greater separation between fringes and which was sharper?
  4. B

    Chemistry: Post your doubts here!

    Yes.
  5. B

    Chemistry: Post your doubts here!

    Please help!!!!
  6. B

    Chemistry: Post your doubts here!

    Please help!!!!
  7. B

    Chemistry: Post your doubts here!

    The enthalpy change of solution is the enthalpy change when 1 mole of an ionic substance dissolves in water to give a solution of infinite dilution. This is the definition and in the above case CaO is the ionic substance dissolved in water. Isn't that so?
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    Chemistry: Post your doubts here!

    The enthalpy change of solution is the enthalpy change when 1 mole of an ionic substance dissolves in water to give a solution of infinite dilution.
  9. B

    Chemistry: Post your doubts here!

    Yes it is B, but isn't reaction 2 a reaction enthalpy of a solution and can you please give me the definition of enthalpy of hydration. The enthalpy change of solution is the enthalpy change when 1 mole of an ionic substance dissolves in water to give a solution of infinite dilution.
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    Chemistry: Post your doubts here!

    Please help as I don't understand how to get the reaction 2 answer.
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    Chemistry: Post your doubts here!

    Snowysangel can you check out my questions
  12. B

    Chemistry: Post your doubts here!

    2 is wrong as it is not high as it is formed from a reversible reaction and 3 is wrong as HSO4- is formed from a one way reaction but as the other is formed from a reversible one.
  13. B

    Chemistry: Post your doubts here!

    Can someone please look into these difficult questions?:)
  14. B

    Chemistry: Post your doubts here!

    It is trigonal planar as it Al has only 3 outer electrons as it is in group 3 and those three are covalently bonded to Cl so it has only 3 bond pairs and is trigonal planar.
  15. B

    Chemistry: Post your doubts here!

    Yes
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