Agas of 190 ml at a pressure of 74 atm can be expected to change its pressure when its volume changes to 30.0 ml. express its new pressure in units of atmospheres.

Answer : The new pressure of the gas will be, 468.66 atm

Explanation :

Boyle's Law : This law states that pressure of the gas is inversely proportional to the volume of the gas at constant temperature and number of moles.

    (At constant temperature and number of moles)

or,

where,

= initial pressure of the gas = 74 atm

= final pressure of the gas = ?

= initial volume of the gas = 190 ml

= final volume of the gas = 30 ml

Now we put all the given values in the above formula, we get the final or new pressure of the gas.

Therefore, the new pressure of the gas will be, 468.66 atm

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.