A buffer solution is made so that the initial concentrations of lactic acid (HC3H5O3)and the lactate ion (C3H5O3-)are both 0.600 M. What is the resulting pH if 10.0 mL of 1.00 M hydrochloric acid is added to 0.500 L of the buffer solution

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.

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air

in a tire you fill a tire with air

then a couple days later you check the air pressure in the tire

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