Draw one valid lewis structure (including all lone pair electrons and any formal charges) for ch3no2. assume the atoms are arranged as shown below.

The lewis structure is drawn as

a) we first count the total number of valence electrons in the compound

b) then we give one pair of electrons in between each pair of bonded atoms

c) rest of the electrons are arranged around the side atoms to fullfill their octet

d) the electrons are rearranged to complete octet of maximum number of atoms

so the structure will be:

when [oh-] is 10-5  m, and [h3o+] is 10-9  m, the poh is 5 and ph is 9. again in both cases the sum of ph and poh is 14. however, the hydrogen ion concentration is not always going to be equal to exactly 1 x 10 raised to a negative number. for example, we skipped over the value of 2.0 x 10-7.