Suggest a way to determine the Λ°m value of water. fro
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    Electrochemistry

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    7. Why does the conductivity of a solution decrease with dilution?
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    8. Suggest a way to determine the Λ°m value of water.

    Answer:

    According to Kohlrausch’s law
    Λom(H2O)  = Λom(HCl) + Λom(NaOH) – Λom(NaCl)
    Hence if we know the values of Λom  for  HCl, NaOH, and NaCl, then we can calculate the value of Λom  for the water.
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    9. The molar conductivity of 0.025 mol L–1 methanoic acid is 46.1 S cm2 mol–1. Calculate its degree of dissociation and dissociation constant. Give λ°(H+) = 349.6 S cm2 mol–1 and λ° (HCOO– ) = 54.6 s cm2 mol–1.
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    10. If the current of 0.5 ampere flows through a metallic wire for 2 hours, then how many electrons flow through the wire?
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