Advertisements
Advertisements
प्रश्न
If one mole of nitrogen molecules weighs 28 g, calculate the mass of one molecule of nitrogen in grams.
Advertisements
उत्तर
Mass of one mole of nitrogen = 28g
We know that, 1 mole of nitrogen contains 6.022 × 1023 molecules.
Mass of 6.022 × 1023 nitrogen molecules = 28g
Mass of one molecule of nitrogen = 28 / 6.022 × 1023 g = 4.64 × 10-23 grams.
Hence, one molecule of nitrogen weighs 4.64 × 10-23 grams.
APPEARS IN
संबंधित प्रश्न
Write the molecular formulae of Iron (III) sulphide:
The valency of sodium is one, write the molecular formula for sodium carbonate ?
The valency of sodium is one, write the molecular formula for sodium nitratev ?
Fill in the blank
_______ is a triatomic molecule.
In hydrogen peroxide (H2O2), the proportion of hydrogen and oxygen by mass is :
Calculate the number of molecules present in a drop of chloroform (CHCl3) weighing 0.0239 g.
(Atomic masses : C = 12 u ; H = 1 u ; Cl = 35.5 u)
State the correct formula of the following from the option given:
Sodium bisulphite
How many atoms are present in a `PO_4^(3-)` ion?
Compute the number of ions present in 5.85 g of sodium chloride
A group of atoms carrying a fixed charge on them is called ————.
