What is the molar mass of 81.50g of gas exerting a pressure of 1.75atm on the walls of a 4.92l container at 307k?

Molar mass of gas is 238.6 g/mol

Explanation:

Using ideal gas equation:  

PV = nRT

P= pressure = 1.75 atm

V= volume = 4.92 L

n = no of moles =

R= gas constant =0.0821 Latm\molK

T = temperature = 307 K

R= gas constant = 8.314 J/Kmol

T= temperature = 190.7 K

M= molecular mass of gas = ?g/mol

hloride, what is the mass of calcium in

explanation:

"among the transition metal elements, manganese and zinc have a slight lowering of electronegativities. the reason behind this is that the nuclear charges of these elements are slightly weaker than the other transition metal elements due to the way their valence electrons are filled up. both manganese and zinc have their valence electrons filled up to the 4th shell with 1 pair of electrons (4s2) completely occupying it. although the electrons in the 3rd shell (3d) are yet to be paired since the outer most shell is filled up, the ability of the nucleus to attract electrons is lessened. hence,   the electronegativity (or the ability to attract electrons) is lessened."