What is the osmotic pressure of ? by mass aqueous solution of K 2 SO 4 with a density of 1.15g / m * l at 20 C? A 50.0 atm
B 12.0 atm
C 60.0 atm
D 6.08 atm
E 7.02 atm

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

frequency, z, and the collision density, z, in carbon dioxide (co2), r 180 pm at 30 °c and 120 kpa

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