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chenbeier

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Posts posted by chenbeier

  1. 5 hours ago, Externet said:

    Hello. 

    Can someone teach me how a chemical reaction translates into potential differential Volts as a battery ?  These chemical reactions / equations for these elements / compounds :

    image.thumb.png.618a71b95906b53ddf2579174291eb3f.png

     

    Or as for a perhaps simpler case, the well known carbon-zinc vulgar cell yielding 1.5 volts.

    Nernst law

    Potontials with positiv voltage minus Potential with more negative voltage gives potential between the two electrodes

     

    Here 1 V -(-0.26 V) = 1.26 V

     

     

    Zinc -0,763 V  carbon-manganeseoxide +0,975 V

     

    0,975V - (-0,763) = 1,738 V

     

  2. The miscibility of liquids and the evaporation rate are different things. If you mix the three solvents they will dissolve directly.

    The compound of the highest vapor pressure will evaporate faster as the other ones.

  3. On 3/5/2024 at 10:23 PM, MigL said:

    But pure Ammonia, by itself, is not basic, just a strong reducer ?

    Ammonia is a gas at standard conditions, we cannot speak it has an pH, like water steam has no one.

    But liquid ammonia has also its autopotolysis like water it has.

    2 NH3 => NH4+ + NH2-

    2H2O => H3O+ + OH-

    So could have a pH scale based on ammonium theoretical.

     

  4. If so then would be radiation no problem. Why the people afraid of nuclear power then.

    My expierence is:  a cupboard in the lab got radiation where a container of K40 chloride  was stored. It emittes gamma, beta - and  beta+. What is your explanation for it.

    Why the people in Japan afraid to get the Tritium water from Fukoshima into the sea?

  5. 5 hours ago, Bufofrog said:

    Yes, you said, "All material itself get radioactive, if exposed longer time to any of radiation."

    Moontanman said, "it takes particles like neutrons or protons to actually make another atom radioactive."

    I referred to the initial question, if material is exposed to alpha, beta or gamma rays . Nothing more, if it was unclear then I say sorry.

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