What pressure is needed to compress 455ml of oxygen gas at 2.50 atm to a volume of 282ml?

As per Boyle’s law

For a given amount of gas, Pressure is inversely proportional to its volume, at constant temperature

The expression for Boyle’s law is given by  

 (at constant T)

(k is the constant)

when there is a change in pressure and volume we make use of the expression  

and are the initial pressure and initial volume and  

and are the final pressure and final volume

Plugging in the values  

(Answer)

the number of protons in the nucleus of a given element. has slight luster and conducts electricity at high temperatures like metal.but like a nonmetal,boron is brittle and does not conduct electricity well at low temperatures. in graphite, carbon is a soft,brittle solid.it is reflective,ductile,or malleable.

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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