how do we identify whether the given water is hard or soft write any two physical properties of water
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Water having high mineral content (between 120-180 PPM) – mostly Calcium and Magnesium is considered as hard water. Anything below this limit is mildly hard, and over this is very hard.
Hard water can be identify very easily. Some physical characteristics such as taste indicate hardness in water. The taste of hard water will be less pleasant as compared to the taste of soft water. A simple way to test if water is hard is to see how much lather is generated with soap. While soft water produces more lather, hard water produces less lather.
To know accurately if your water is moderately hard or very hard a TDS (Total Dissolved Solids) test can be done. This simple test checks the quantum of total dissolved solids in the water, which is a mix of salts, minerals and other dissolved impurities. If the TDS is greater than 500 PPM, chances are that the taste of the water will be undesirable and the hardness may be in the moderately high to high category.
Properties
liquid at standard temperature and pressure. The colour of water and ice is, intrinsically, a very slight blue hue, although water appears colourless in small quantities. Ice also appears colourless, and water vapour is essentially invisible as a gas.
water is transparent, and thus aquatic plants can live within the water because sunlight can reach them. Only strong UV light is slightly absorbed.
Hard water can be identify very easily. Some physical characteristics such as taste indicate hardness in water. The taste of hard water will be less pleasant as compared to the taste of soft water. A simple way to test if water is hard is to see how much lather is generated with soap. While soft water produces more lather, hard water produces less lather.
To know accurately if your water is moderately hard or very hard a TDS (Total Dissolved Solids) test can be done. This simple test checks the quantum of total dissolved solids in the water, which is a mix of salts, minerals and other dissolved impurities. If the TDS is greater than 500 PPM, chances are that the taste of the water will be undesirable and the hardness may be in the moderately high to high category.
Properties
liquid at standard temperature and pressure. The colour of water and ice is, intrinsically, a very slight blue hue, although water appears colourless in small quantities. Ice also appears colourless, and water vapour is essentially invisible as a gas.
water is transparent, and thus aquatic plants can live within the water because sunlight can reach them. Only strong UV light is slightly absorbed.
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Hard water contains minerals, usually calcium and magnesium ions, which make soap less effective and leave scale on your dishes and plumbing. There are several tests for water hardness, ranging from an easy one you can try immediately to a more accurate test kit. If it turns out you do have hard water, there are several approaches you can take to minimize the effects.
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