Explain the Hard and Soft water ?
Answer / guest
Sample of water which contains soluble salt of calcium,
magnesium or iron is known id as heard water. It is very
difficult to get latter with such a sample of water but soft
water lathers readily with soap
Hardness of water is of two types:
When hardness is due to presence of bicarbonates of calcuium
or magnesium it is termed as Temporary deadness. If
sulphates and chlorides of calcium and magnesium was present
in water, then it is termed as permanent hardness
Temporay hardness can be removed by:
(1) Boiling
(2) By Ckark?s method
(3) By addition of washing soda
(4) For removal of permanent hardness following methods can
be employed.
(5) By calogen process
(6) By permutil process
(7) With ion- echange resins
Hard water cannot be used for washing purposes by using hard
water, large quantities of soap get washed in giving
precipitates with calcium and magnesium ions present in
their water. These precipitates may stick to fibres of
garment. For bathing purposes soft water is used, as it
lathers readily with soap
Is This Answer Correct ? | 7 Yes | 1 No |
How is the measurement of ph made?
Explain the Purification of Organic Compounds ?
Cholesterol is a compound suspected of causing hardening of the arteries. The formula of cholesterol is C27H46O. a. A sample of cholesterol is isolated from the arterial lining of a 60-year-old American male. What is the formula of this compound? b. Cholesterol is extracted from a chicken’s egg. What is the formula of this compound?
What is pka of acid?
What is Acidity of a base ?
What is an indicator electrode?
Why is ammonia added? Why is that same amount of ammonia added?
Explain extraction of ephedrine from a mineral block?
Why is the color of the indicator drop remains the same at the end point?
What is protein - according to chemistry?
Define what is oxidation and reduction reaction?
why is acetic acid less conductive than hcl?