Calculate the molar mass of a gas at 388 torr and 45°c if 206 ng of gas occupies 0.206 ul. (

The molar mass of a gas is 51.14g/mol.

Given Here,

Temperature - 318 K

Pressure - 0.51atm

Volume -  

Mass -

Assuming STP,

PV = nRT

So, we can conclude that the molar mass of a gas is 51.14g/mol.

To know more about molar mass, refer the link:

link

the answer is   c.) 1575 j.

explanation:

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