chemistry

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What mass of electrons would be required to just neutralize the charge of 1.4 of protons?

  • chemistry -

    **1.4 grams of protons

  • chemistry -

    Look up the mass of one proton (and one electron).
    mass proton x # protons = 1.4 grams. Solve for # protons.
    #protons = # electrons.
    # electrons x mass 1 electron = mass electrons.

    It can be done another way with reasoning.
    We know that a proton is about 1833x more massive than an electron; therefore, 1.4 g/1833 = about 0.00076g. See if you get that answer with the calculation above.

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