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how to find ions in an acid and how to find an that an acid is weak or strong

how to find ions in an acid  
and how to find an that an acid is weak or strong

Grade:7

3 Answers

ADARSH SINGH
123 Points
5 years ago
DEAR FRIEND,

IN ORDER TO FIND DIFFRENT IONS IN AN ACID , TRY TO KNOW THE VALENCIES OF THE ELEMENTS OR GROUPS OF ELEMENTS MAKING THAT ACID OR DERIVE IT AND SEPERATE THE CONSTITUENTS OF THE ACIDIC COMPOUND.
FOR EXAMPLE, LETS TAKE THE HYDROCHLORIC ACID. OR HCL,
BREAK IT INTO ITS POSITIVE AND NEGATIVE CONSTITUENTS AND YOU WILL  GET H+ AND CL-.
THIS WAY, YOU CAN DERIVE IONS INVOLVED IN AN ACID.
IN ORDER TO KNOW WHETHER AN ACID IS STRONG OR WEAK,  YOU HAVE TO LOOK FOR RATE OF DISSOCIATION OF THAT ACID. IF RATE OF DISSOCIATION IS HIGH , THEN THE ACID IS STRONG AND IF IT IS LESS , THEN THE ACID IS WEAK.
FOR EXAMPLE , HCL IS A STRONG ACID AS RATE OF DISSOCIATION IN IT IS 100% WHILE CH3COOH IS A WEAK ACID AS RATE OF DISSOCIATION IS 25%.
HOPE YOU GOT YOUR ANSWERS. IF THERE ARE STILL ANY QUERIES , PLEASE REPLY AND ASK.
Ayush Anand
126 Points
5 years ago
Note down how they are formed , because they break down into ions in a similar manner as they were formed.Eg. HCl------> H+ + Cl- HCl when breaks down give hydrogen ion and one chlorine ion. Since all the hydrogen atom present in it are break down into ions , it is very strong base. As this percentage decreases the acid is more weak.
Scholr Boy
87 Points
5 years ago

Use Scholr App for solving doubts

Determining if an acid is strong or weak by the formula is very specific. There’s no straightforward process for calculating this from a formula, so the way to go about this would be memorizing the small number of common strong acids and understanding that the rest are weak. A strong acid is normally defined as a chemical having a pKa

  1. Hydrogen bonded to a halogen (other than Fluorine) - HCl, HBr, HI
  2. Protonated water (Hydronium), protonated alcohols, and protonated ketones, meaning they carry an extra hydrogen and a positive charge.
  3. Sulfonic acids, and the odd one out, Sulfuric Acid (H2SO4)

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