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
What does 2H2S represent ?
Write the molecular formulae of Calcium hydroxide :
In hydrogen peroxide (H2O2), the proportion of hydrogen and oxygen by mass is :
What is the number of electrons donated by a magnesium atom and number of electrons accepted by a sulphur atom during their chemical combination?
What is the number of electrons after the transfer of electrons in magnesium and sulphur atoms.
Diagrammatically represent the transfer of electrons.
‘Atoms of the same element or different from Dalton’s atomic theory by the Modern Atomic Theory.
Give two examples each of –
- Atoms of the same element
- Atoms of different elements combining to form a molecule.
State the correct formula of the following from the option given:
Ammonium sulphate
Define molecule.
How many atoms are present in a PO4 3– ion?
