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the hardness of water is mainly due to the presence of Ca or Mg ions.when hard water containing these ions is treated with soap solution it reacts to form white curdy ppt. known as "scum".
2C17H35COONa + Ca+2 -------> (C17H35COO)2Ca + 2Na+
(soap soln) (scum)
the hardness is divided into two:
1) permananent Hardness(because of the precense of salts of ca or mg ions)
2) Temporary Hardness(due to the precense of bicarbonates)
Wiki User
∙ 11y ago
Wiki User
∙ 11y agosoaps are the potassium or calcium salt of fatti acids having high molecular weight (such as :pamitic acid ,stearic acid etc.) .
and hard water consists sulphate, bicarbonate, and chloride salts
of ferrus ,calcium or magnesium.
so they react with each other and sodium sulphate or chloride along with magnesium or calcium stearate or etc. is produced and they are sedimented under the water. when all the salts of the hard water completes the reaction , a little lather is produced.
such as :
2Na-Stearate + CaCl2 = Ca(stearate)2 + 2 NaCl.
Wiki User
∙ 11y agoIt does, soap on the other hand can only lather in soft water.
Wiki User
∙ 13y agoThe calcium and magnesium salts in the hard water form salts with the soap preventing / reducing lather formation.
Wiki User
∙ 9y agoThe reason behind this is either it contains bicarbonates of calcium and magnesium or it contains sulphates and chlorides of calcium and magnesium.
Wiki User
∙ 9y agoHard water does not lather with soap because either it contains bicarbonates of calcium and magnesium or it contains sulphates and chlorides of calcium and magnesium.
Wiki User
∙ 13y agoNo, lather does not form in hard water.
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What is the hypothesis of water?
sexy
How to clean plastic window blinds?
Just take a damp rag and wipe it off. If it's something hard, like dried food, take them down(If you can), and use a scrubby. Lay it on a hard surface, and scrub hard. Eventually, it should come off.If you can take them off, put them in the bath and soak in a solution of warm water and dish washer detergent.
Is tap water healthy for you?
yes! you can get different types of water that come out of taps. you can get hard water and you can get soft water. hard water has relatively large amounts of calcium and magnesium salts dissolved in it. this is because water is a good solvent. as rain falls from clouds, some of the carbon dioxide dissolves in the water to form carbonic acid (this is very dilute and is not harmful). as the carbonic acid moves through different calcium and magnesium minerals to form hard water. this is proven to help reduce the risks of heart disease. also, some people say it tastes better too ;). a disadvantage though is that it can cost a little more money to have because you need more soap for it to lather and produce bubbles. also it produces lime scale. you can transform hard water into soft water by removing calcium and magnesium ions. this cam be achieved by adding washing soda (sodium carbonate) or by passing it through an ionic exchange column. lol soft water is the opposite and is just plane H2O.
What causes hard water?
Dissolved minerals in the water. In most cases it is better to water your garden with hard water instead of treated water. The plants typically like the minerals found in hard water.
What problems does hard water cause?
What problems does hard water cause? If you wash clothes with hard water they will often look scratchy or feel very harsh. Often if you bathe with soap and hard water you will have a sticky film of soap left on you. If you wash dishes mainly in a dishwasher with hard water you will have spotting or a film on your dishes or cooking utensils. Some things that are convenient about hard water is that it works just fine for watering your garden, washing or rinsing you driveway, and it is fine for most outdoor lawn care things.
What is the effect of soap and detergent in the hard water?
One effect of soap and detergent in hard water is it will not lather as well as it does in soft water. This can affect the way the soap or detergent cleans in hard water making them less effective.
What water produces more lather when soap is added?
Water is a universal solvent and is of two types soft and hard water. Water that produces more lather when soap is added is Soft Water.
Why doesn't soap and detergent have the same effect on different types of water?
Soap and water react differently in both soft and hard water whereby soap works faster and detergent works slower and may not even lather.
Do you need more laundry detergent in soft water than in hard water?
Yes. Fabric softeners and water softeners are different things that serve different purposes.
What S forms when soap is used in hard water?
Hard water does not produce lather. So soap does not work effectively with hard water as soap does not form a good lather with hard water.
Which water does not form enough lather with soap?
hard water
What effect does hard water have on a detergent?
potaSome laundry detergents do not produce as many suds in hard water, these are likely to be soap-based products and do not work as well in hard-water as detergent based products.Hard water affects the chemistry of the action between detergents and water to prevent it from forming a good lather. This can affect the cleaning power of the detergent and reduce its effectiveness.Nowadays, there are washing powders and liquids available for a wide range of water hardness. Make sure you choose the correct detergent for your area; you may also need to use slightly more detergent than the manufacturers recommended amount to compensate for the hard water. In many cases the manufacturer will give specific instructions on how to use the product in hard water areas, look out for these labels on your product.
How do you do soft water from hard water?
Water is a universal solvent and there are two types of water i.e hard water and soft water. Soft water is the water that easily lather with soap while hard water does not lather with soap and is also of two type i.e temporary and permanent.
When is a sample of water said to be hard?
A sample of water is said to be hard when it does not form lather readily with soap.
How can you tell the difference between hard and soft water?
soft water easily lather witth soap but hard water do not.
What is standard hard water?
hard water is which has no ability to lather with soap standard hard water contains 1mg of calcium carbonate in every 1ml of water.
What chemicals are used to make detergent power in industries?
The chief chemicals used to manufacture detergents are Ammonium or Sulphonate salts of long chain carboxylic acids. They will do not produce insoluble precipitates but profusely lather in hard water .
