What is the pH when the hydrogen ion concentration is 1 x 10-3 M? O a. 3.3
O b. 4
O c. 2.7
O d. 2
O e. 3

e. 3

Explanation:

In order to solve this problem we need to keep in mind the definition of pH:

As stated by the problem, the hydrogen ion concentration, [H⁺], is 1x10⁻³ M.

As all required information is available, we now can calculate the pH:

The correct option is thus e.

answer:

the answer is 6 valence electrons.

explanation:

valence is the # of electrons on the outer most shell of an atom.

oxygen has 6.

although, the valency of oxygen is 2, because it only needs to make 2 covalent bonds, or gain 2 electrons, to achieve the stable octet configuration of a noble gas.

that's it!

if you need further assistance, let me know: )

~ trueboss72