Advertisements
Advertisements
प्रश्न
What is the significance of the formula of a substance ?
Advertisements
उत्तर
The significance of the chemical formula of any substance is as follows:
- A chemical formula of a substance (element or compound) represents its name.
- A chemical formula provides important information on the chemical makeup of any substance (element or compound). It names all the elements present in the molecule.
- A chemical formula also provides important information on the number of atoms of each constituent element of the molecule of the substance.
- A chemical formula represents one mole of molecules of the substance (element or compound), which is 6.022 × 1023 molecules of the substance.
- Since, a chemical formula represents one mole of molecules of a substance, it also represents the definite mass of that substance, which is expressed as gram molecular mass.
APPEARS IN
संबंधित प्रश्न
Explain the difference between 2N and N2.
Identify the following substance:
A brown gas D with the irritating smell.
Name the element in the compound and give the formula of the following compound:
Blue vitriol
Write the formula of the following compound:
Sodium zincate
Write the formula of the following compound:
Sodium iodide
Write the formula of the following compound:
Copper [II] nitrate
Write the formula of the following compound:
Iron [III] chloride
State of the following formula of a compound is incorrect. Incorrectly write the correct formula.
KNO3
Find the valency of the element which is underlined in the following formula.
- NaCl
- CO2
- Al (PO4)
- Ba (NO3)2
- CaCl2
