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
The formula of a compound is X3Y. The valencies of elements X and Y will be respectively :
The formula of carbonate of a metal M is M2CO3.
What will be the formula of its nitride ?
Correct the following statement:
Formula of iron (lll) oxide is FeO.
Write the formula of the following compound:
Potassium sulphate
Write the formula of the following compound:
Sodium bicarbonate
Write the formula of the following compound:
Zinc oxide
Write the formula of the following compound:
Diamine silver chloride
State of the following formula of a compound is incorrect. Incorrectly write the correct formula.
Mg(SO4)2
State of the following formula of a compound is incorrect. Incorrectly write the correct formula.
BaCl2
Write the chemical formula for the following elements.
- Hydrogen
- Nitrogen
- Ozone
- Sulphur
