3. According to the solubility prediction for vitamin K1, the polar carbonyl functional groups significantly impact the solubility, presumably due to the orientation of the carbonyl bonds.

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.

i think the answer is terrae but not 100 percent sure. ▓▬▬ §