Strength Of Acids And Bases
Chapter Name : Acids Bases And Salts |
Sub Topic Code : 102_10_02_03_01 |
Topic Name : Strength Of Acids And Bases |
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Sub Topic Name : Strength Of Acids And Bases |
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Introduction
What all information can we extract using an indicator
Pre-Requisites:
Acid, base, indicators
Activity:
Get some universal indicator and put in any solution (take help from your teacher) and see the changes
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| pH>7 | Basic |
| Universal indicator | Mixture of several indicators. Shows different colors at different concentrations of hydrogen ions in a solution. |
| pH=7 | Neutral |
| pH<7 | Acidic solution |
| pH scale | Scale developed to measure hydrogen ion concenteration in solution |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| pH table and colour chart of universal indicators | One can understand how to differentiate between different pH using universal indicator and what is the relation between them |
Real life uses :
pH scale is used to determine reaction conditions and environment, factors which are critical to many life saving reactions
Places to visit :
School lab
Practical examples around us
| Examples | Explainations |
|---|---|
| universal indicators in food industry | We use indicators to see whether food is rotten or not in commercial industries |
What you learn in Theory:
pH scale, universal indicators
What you learn in Practice:
how we can use indicators to make a universal indicator, how pH scale was developed and what the value interprets to