How is the measurement unit, the mole, different from the measurement unit, the kilogram?

The mole is defined as the number of atoms in 12 grams of carbon, which is about 6.022*10^23 (also known as Avogadro's number)

Kilogram is a SI measurement for weight.

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.

space exploration has led to the development and technological improvement of many everyday items. (if this answer is wrong i will find the right answer) : )