Approximately how many grams of sodium chloride (nacl) are required to prepare 500. ml of 3.00 m solution

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.

it would be b. 6co2 + 6h2o --> c6h12o6 + 6o2