Acid.
1. Naturally Occurring Acids. These are weak acids. the word 'acid' comes from Latin word 'acidus' which means sour. Acids have a sour taste.
Acid Present In
Citric Acid- Citrus fruits ( oranges, lemons)
Lactic Acid- Milk, curd
Acetic Acid- Vinegar
Tartaric Acid-Tamarind,grapes, unripe mangoes
Amino Acids-Proteins
Tannic Acid- Tea
Malic Acid-Apple
Carbonic Acid-carbonated drinks like coke,Pepsi etc
2.Strong Acid. Some acids are strong and dangerous to handle and cause serious skin burns.
Sulphuric Acid is one of the strongest acids and widely used in industry.Nitric acid and Hydrochloric acid are other strong acids. Our stomach also produes Hydrochloric acid which help us in digesting food.
An acid turns blue litmus red. Litmus is a natural indicator obtained from lichens.
The naturally occurring acids present in human and plants are organic acids but hydrochloric, sulphuric and nitric acids are mineral acids.Todilute an acid, acid must be added to water slowly and not otherwise.
Aqua Regia,made of 3 parts of HCL and 1 part of Nitric Acid, can dissolve even gold and platinum.
The pH scale measures how acidic or basic a substance is. It ranges from 0 to 14. A pH of 7 is neutral, so pure water has a pH of 7. A pH less than 7 is acidic, and a pH greater than 7 is basic.
Each whole pH value below 7 is ten times more acidic than the next higher value.
1. Naturally Occurring Acids. These are weak acids. the word 'acid' comes from Latin word 'acidus' which means sour. Acids have a sour taste.
Acid Present In
Citric Acid- Citrus fruits ( oranges, lemons)
Lactic Acid- Milk, curd
Acetic Acid- Vinegar
Tartaric Acid-Tamarind,grapes, unripe mangoes
Amino Acids-Proteins
Tannic Acid- Tea
Malic Acid-Apple
Carbonic Acid-carbonated drinks like coke,Pepsi etc
2.Strong Acid. Some acids are strong and dangerous to handle and cause serious skin burns.
Sulphuric Acid is one of the strongest acids and widely used in industry.Nitric acid and Hydrochloric acid are other strong acids. Our stomach also produes Hydrochloric acid which help us in digesting food.
An acid turns blue litmus red. Litmus is a natural indicator obtained from lichens.
The naturally occurring acids present in human and plants are organic acids but hydrochloric, sulphuric and nitric acids are mineral acids.Todilute an acid, acid must be added to water slowly and not otherwise.
Aqua Regia,made of 3 parts of HCL and 1 part of Nitric Acid, can dissolve even gold and platinum.
The pH scale measures how acidic or basic a substance is. It ranges from 0 to 14. A pH of 7 is neutral, so pure water has a pH of 7. A pH less than 7 is acidic, and a pH greater than 7 is basic.
Each whole pH value below 7 is ten times more acidic than the next higher value.
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