mol/L
Molarity
molarity
n = gmol = N molecules / N Avogadro n = ( 2.4 x 10^23 molecules ) / ( 6.022 x 10^23 molecules per gmol ) n = 0.3985 gmol m = ( n ) ( M ) m = ( 0.3985 ) ( 141.94 g per gmol ) = 56.6 g <----------------------
Molar Mass
The mass of 35 gmoles of carbon monoxide ( CO ) is given by : m = ( n ) ( M ) m = ( 35 gmol ) ( 28.00 g / gmol ) = 980 g <----------------
True ~e2020~ BigShawn
c12h24
gmol-1 refers to grams per mole and is a unit of measurement commonly used in chemistry to express molar mass or molecular weight. It represents the mass of one mole of a substance in grams.
C5h10
The average molecular weight of dry air is 28.96 g/gmol.
To find the number of N2O4 molecules, we first need to calculate the number of moles of N2O4 in 76.3g using the molar mass. We divide 76.3g by 92.02 gmol to find 0.83 mol. Next, we use Avogadro's number, 6.022 x 10^23 molecules/mol, to convert moles to molecules. Multiplying 0.83 mol by Avogadro's number gives us approximately 5 x 10^23 molecules of N2O4 in 76.3g.