What is the pressure of 0.5 mol nitrogen gas in a 5.0 l container at 203 k?

use ideal gas equation PV=nRT

find P fro the above equation all other are available in the your question.

V= volume

T= temperature

n= moles of gas

R is constant = 8.314 4621(75). J K−1 mol−1

number of molecules / avogadro's number * molecule molecular = mass

explanation:

we define a gram-molecular weight as the mass of one mole of any element or compound. a mole contains avogadro's number of units (molecules) –  

6.022

x

10

23

. so, dividing the number of molecules by avogadro's number gives us the number of moles. multiplying that by the molecular weight gives us the mass. from the periodic table we find the gram-molecular weight of u to be238 and of f to be19. so,  

u

f

6

will have a gram-molecular weight of 352g.

1.43 x 10^-11 j the guy commented the awnser just making sure u see it .