Topic Content:
- Rules for Writing Chemical Formula of Compounds
1. Write down the symbol of elements or radicals.
2. Write the Oxidation numbers above and to the right of the symbol or radical
3. Now write the symbols again, reversing the Oxidation numbers and writing the numbers (but not 1) below and to the right of the symbol. Omit the signs.
Let us apply these rules in writing the Chemical formula of sodium tetraoxosulphate (IV)
| Rule I | Na | SO4 |
| Rule II | Na+ | SO42- |
| Rule III | Na2 | SO4 |
= Na2SO4
Example 7.6.1:
Write down the molecular formula of the following:
1. Sodium trioxonitrate (V)
2. Iron (III) Chloride
3. Calcium Oxide
4. Potassium tetraoxosulphate (VI)
Solution:
You are viewing an excerpt of this Topic. Subscribe Now to get Full Access to ALL this Subject's Topics and Quizzes for this Term!
Click on the button "Subscribe Now" below for Full Access!
Subscribe Now
Note: If you have Already Subscribed and you are seeing this message, it means you are logged out. Please Log In using the Login Button Below to Carry on Studying!
Thank you ,I appreciate
You have really helped me