Consider the image below depicting an ideal gas contained within a 4.5 L 4.5 L cylinder under a constant force. If 3.0 × 10 − 3 moles 3.0×10−3 moles of gas are occupying the cylinder and the temperature of the gas is 350 K 350 K, determine the mass of the weight on the cylinder. Assume the top of the cylinder has an area of 1.0 m 2 1.0 m2, and atmospheric pressure can be ignored.

i just got this problem. it's 90.3

i'm pretty sure its b i might be wrong though!

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!

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~ trueboss72