Not all, but some. Water molecules may dissociate into separate ions (hydrogen [H+] and hydroxyl [OH-]), but, since they are oppositely charged, they tend to recombine fairly rapidly.Originally Posted by Frog march
Only 17 times as massive, but no. The force experienced due to the magnetic field is proportional to the charge, so it would be equal (though in opposite directions). This force would indeed accelerate the hydrogen ions faster than the hydroxyl, but the resulting momentum of each would be the same.Originally Posted by Eroica
Details for any other lurking geeks :
pH is a measure of average hydrogen ion concentration of a solution. Pure water is pH 7, meaning 1.0e-7 mole of [H+] per liter, so a rather small fraction of the water is ionized at any moment.
Acids have a higher concentration of hydrogen ions, directly provided by the acidic substance (stomach acid contains hydrogen chloride, HCl, in solution called hydrochloric acid, directly providing more [H+] -- stomach acid is often around pH 2, or 1.0e-2 M/l, a significantly higher concentration that pure water, though still a small fraction of the total solution).
Alkaline solutions, on the other hand, provide more [OH-] which tend to bind with the free [H+] from the water, so fewer are available at any given time. The lower concentration is represented by a higher pH value (just as the higher concentration for the acid is a lower value).
Most people learn that the pH scale runs from 0 (very acid) to 14 (very alkaline), an this is true for most substances people will encounter, but it is quite possible to exceed these limits -- an extremely strong acid could have a negatove pH.
An acid would not be affected any differently by the magnetic field than water; although it has more [H+] than the water, the excess is balanced by the other component of the acid, [Cl-] in the case of hydrochloric acid.