Determine the volume by 0.305 miles of oxygen gas at STP

6.83L

Explanation:

It has been proven that 1mole of any gas occupy 22.4L at stp. This also indicates that 1mole of O2 occupies 22.4L at stp.

Now if 1mole O2 occupies 22.4L at stp, then 0.305 mole of O2 will occupy = 0.305 x 22.4 = 6.83L at stp.

Therefore, 0.305 mole of O2 occupies 6.83L at stp.

explanation:

metals have excess of electrons whereas non-metals have deficiency of electrons. thus, in order to gain stability metals easily donate their electrons to the non-metals.

for example, electronic configuration of sodium is and electronic configuration of phosphorous is .

when a phosphorous atom and sodium atom combine together then sodium will donate is extra one electron to the phosphorous atom. as a result there will be formation of ionic bond between sodium and phosphorous.

the reaction will be as follows.

there, are three sodium sodium atoms and each of them will donate its one extra electron to phosphorous atom. thus, the sub-shell of phosphorous gets completely filled.  

thus, we can conclude that electrons are transferred from atoms of sodium to atoms of phosphorous. this transfer makes the sodium atoms donate one electron and the phosphorous atoms to gain one electron. as a result, the sodium and phosphorus atoms strongly attract each other.

b) nuclear ive learned that in a pedtrodic table