Elementary Practical Chemistry a Laboratory Manual for Use in Organized Science
The book Elementary Practical Chemistry a Laboratory Manual for Use in Organized Science was written by author George S Newth Here you can read free online of Elementary Practical Chemistry a Laboratory Manual for Use in Organized Science book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Elementary Practical Chemistry a Laboratory Manual for Use in Organized Science a good or bad book?
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Certain of the dissolved solids in natural waters impart the property known as hardness. These salts are chiefly the carbonate and sulphate of lime. When hard water is boiled, if its hardness is due to the presence of G 82 Water. Dissolved carbonate of lime, it becomes soft, because the carbonate of lime is precipitated as a solid, which in time collects on the sides of the vessel (boiler or kettle), and pro- duces the furring which is so common. Sulphate of lime is not thrown out of solution b...y boiling ; therefore, if the hardness is due to this salt, boiling the water will not soften it. On this account, hardness caused by carbonate of lime is called temporary hardness ; and that due to sulphate of lime is termed permanent hardness. If a sample of water contains both these compounds, then it loses only a part of its hard- ness, viz. The temporary hardness, on boiling, while the permanent hardness remains. Water of Crystallization. When salts are crystallized from solution in water (as in Exp.
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