Calculate the volume of this gas at STP.
0.442 mol C2H6

pls answer correctly or will report ty asap !

7.6 mol Ar

0.44 mol C2H6

STP = 1 atm and 273 K

Use PV = nRT and solve for V

V = nRT/P

Plug in the number of moles accordingly for each gas and plug in 273 K for the variable T

1 atm for the variable P and use 0.08206 L•atm/k•mol for the variable R (gas law constant)

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

every chemical equation adheres to the law of conservation of mass, which states that matter cannot be created or destroyed. therefore, there must be the same number of atoms of each element on each side of a chemical equation.