Which equation best represents the dissociation of water molecules into hydrogen ions and hydroxide ions? h2o → h o+ + h– (it's not supposed to have a space, it was just flagged if put together) h2o – oh– → h+ h2o – h+ → oh– h2o → h+ + oh–

it is H2O > H+ + OH-

in the given question, the partial pressure is calculated by using the ideal gas equation, that is, pv = nrt

here, p is pressure, v is volume = 25 l, n is number of moles = 0.0104 moles, r is gas constant = -0.0821 l.atm / mol.k

t is temperature = 273 k

p = nrt / v

p = (0.0104 mol × 0.0821 l.atm / mol.k × 273 k) / 25 l

= 0.0093 atm

the correct option is c.

isotopes refers to different forms of the same element with the same atomic number but different mass number as a result of difference in their neutron numbers. isotopes have different relative atomic mass but share the same chemical properties.