Advertisements
Advertisements
Question
Write the molecular formulae for the following compounds
Aluminium (III) nitrate
Advertisements
Solution
Aluminium (III) nitrate – Al(NO3)3
APPEARS IN
RELATED QUESTIONS
The atomicities of ozone, sulphur, phosphorus and argon are respectively :
Write down the formulae for the following compounds :
Magnesium hydroxide
(a) Write the symbols/formulae of two simple ions and two compound ions (or polyatomic ions).
The formula of a compound is X3Y. The valencies of elements X and Y will be respectively :
Fill in the blank:
Formula of iron (ill) carbonate is _____ .
Name the element in the compound and give the formula of the following compound:
Glauber’s salt
Write the formula of the following compound:
Potassium hydroxide
Write the formula of the following compound:
Sodium zincate
Write the formula of the following compound:
Zinc sulphate
Play a game for writing formula.
Example 2: A low-cost model for writing formulae: Take empty blister packs of medicines. Cut them in groups according to the valency of the element, as shown in the figure. Now, you can make formulae by fixing one type of ion into other.
For example:
The formula for sodium sulphate:
2 sodium ions can be fixed on one sulphate ion.
Hence, the formula will be Na2SO4.
Do it yourself:
Now, write the formula of sodium phosphate.
