Question

Differences between symbols and molecular formula any five points??

Answer 1

Answer:

symbols

1. symbols is a one or two letter notation that is used for denoting different chemical elements.

2. each element has its own particular symbol.

3. The first letter of symbol is always captalized.

4. If the symbol contains two letters , the second letter is lower case .

5.example : chemical symbol of O is oxygen , Zn is zinc and Fe is iron .

molecular formula

1. molecular formula describes the exact number and type of atom in the single molecule of the compound .

To find the molecular formular :

2.

step 1 :

divide the molar mass of the compound by the empirical formula mass .

3.

step 2 :

The result should be a whole number or very close to the whole number.

4.

step 3 :

multiply all subscripts in the empirical formula by the whole number found in step 2 .

5 : example : molecular formula of glucose is C6 H12 O6 .