Discussion on Acid Bases and Salt


 

Join Now for Exam PreparationSTART YOUR NTSE PREPARATION
  •  More than 1 lakh Students
  •  Practice 1000s of questions
  •  Chapter-wise Study Material
  •  Guided Study Plan
WHAT ARE YOU WAITING FOR? JOIN NOW

Posted on: 04:04:24 PM on June 7, 2013
Posted By:
Alina
Plz i want an explaiantn fr the uses of ph scale


REGISTER NOW & POST YOUR QUESTIONS
 

Reponses To This

Posted on: 09:38:27 AM on September 2, 2013
becase ph scale is used for checking the ph value therefore we will know that the solution is basic or acidic



Posted on: 07:51:46 PM on September 11, 2014
The pH scale is an indication of acidity/alkalinity. The pH scale is a measure of the concentration of hydrogen ions (acid) or hydroxyl ions (alkali) in a solution. Weak acids are in some common foodstuffs such as vinegar and citric acid. These acids have sour tastes. A pH value less than 7 is said to be acidic. A pH value greater than 7 is said to be alkaline. A pH value equal to 7 is said to be neutral. Strong acids turn Universal Indicator red and strong alkalis turn it blue. Other acids and alkalis form a range of colours which can be used to indicate the value of pH (see diagram on worksheet E3.3). Another well-known indicator of acidity/alkalinity is Litmus. Litmus is red in acidic solutions and blue in alkaline solutions. Acids and alkalis can both be corrosive. When alkalis react with acids they form a salt plus water. Note that a salt is used to describe a compound formed from acids. It does not just refer to common salt which we use on food.





Post Your Response


» Recent Discussions

By:mehrdad at 12:38:12 PM on July 3, 2020






By:Fatima Alkaabi at 08:48:55 PM on June 16, 2020





» POPULAR Discussions


 
SimplyLearnt
Sign Up to participate in this discussion