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Controls must be of identical composition in order to avoid affecting the outcome of an experiment. Tap water, demineralized water, rain water, lake water, etc., all have different compositions depending on the environmental conditions where they originate. Distilled water is universally the same no matter where it is made, so long as the container is sterile.
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∙ 16y ago
Wiki User
∙ 13y agoDistilled water doesn't have impurities that other water might have. Therefore it will give you the sane results over and over on any experiment you are conducting. Water from the tap, or even purififed water has minerals and other variables that might give you different results when testing something. Therefore distilled water is the best choice.
Wiki User
∙ 11y agosince the distilled water has no impurity, so it is good to remove foreign substances in a particular apparatus. Despite, the using of distilled water to rinse or clean any apparatus contributes in obtaining the accurate molarity or concentration in an experiment.
Wiki User
∙ 14y agoit is used as Blank as the tests we are conducting has to be compared against something. So they are compared against distilled water to get accurate results.
Wiki User
∙ 11y agobecause distilled water does not contains impurities,thus the reading of the measurement will not be affected...:)
Wiki User
∙ 12y agoDistilled water is used because it has a pH of 7 (Acid = Alkali) Where as non distilled water can a have a pH of between 5 and 9.
Wiki User
∙ 11y agoReal classified and standardised solutions should not contain impurities from undistilled water.
Wiki User
∙ 16y agoWater is aqueous and good Solvent
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Does soap carry a charge?
Yes soap solution or any solution can be made to conduct electricity. But, when the solution is made of distilled water then electric conductivity is less compared to ordinary water. The conductivity of a solution depends on the purity of the water as electrical conductivity depends on the availability of positive and negative ions in a solution, and ordinary water contains a lot of salts i.e. NaCl which can split into NA+, Cl- ions, these ions can conduct electricity in water. But in distilled water, depending on the purity of the salts in the solution, electrical conductivity increases or decreases.
How can you make distilled water into conductor?
You need to put salt, dust or other organic substances to create a bridge of conductivity.
Why is the test tube with distilled water included in the laboratory activity?
the purpose of distilled water is so that chemicals in the water do not interfere with the experiment :)
How do you explain the relatively high conductivity of tap water compared to a low or zero conductivity for distilled water?
Tap water contains extra ions (ie not jusy H2O) which conduct. Deionised (as the name suggests) has no extra ions so it is just H2O and which does not conduct as it is not ionically bonded.
Why would someone test electrical conductivity with a solution containing both methanol and water?
because distilled water does not conduct electricity and tap water does and also to see weather methanol conducts electricity.
How would a scientist know that distilled water was pure?
The electrical conductivity is measured.
How do you test for distilled water?
We need to measure the electrical conductivity.
What is distilled water measured?
Distilled water is measuared with its volume in litre or mililitrte.
Conductivity of distilled water nonelectrolyte stgrong electrolyte weak electrolyte?
Distilled water is a non electrolyte, since it doesn't contain free ions.
Why is water a conductor?
Pure (distilled) water is not a good conductor; but most natural water has some ions, that help conductivity.
Is electrical conductivity as a liquid good or bad?
depends on the liquid .. mercury yes .. distilled water no ..
Why did you observe a small current flow in distilled water?
There should be exactly no free electron flow (current) in distilled water because distilled water has zero conductivity. The charges will quickly be neutralised by spontaneous molecule contact. As distilled water is carbonated gradually when exposed to the air, it is electrically conductive.
Why does conductivity of distilled water increase shortly after exposure to air?
Water easily absorb carbon dioxide or other gases from the atmosphere.
Does soap carry a charge?
Yes soap solution or any solution can be made to conduct electricity. But, when the solution is made of distilled water then electric conductivity is less compared to ordinary water. The conductivity of a solution depends on the purity of the water as electrical conductivity depends on the availability of positive and negative ions in a solution, and ordinary water contains a lot of salts i.e. NaCl which can split into NA+, Cl- ions, these ions can conduct electricity in water. But in distilled water, depending on the purity of the salts in the solution, electrical conductivity increases or decreases.
Purest form water?
A water distilled in a platinum installation - Kohlrausch water - with an electrical conductivity of less than 0,055 microSiemens/cm at 25 0C.
Does CaCl2 have a height conductivity value when dissolved in distilled water?
Yes, it does. When CaCl2 is dissolved in distilled water it fully dissociates into one Ca2+ and two Cl- ions. The three of all conduct electricity very well.
Difference in conductivity between Distilled water and tap water?
Distilled water is water that has been vaporized and re-condensed and contains less (if not all) contaminants removed. Tap water has a whole host of chemicals in it due to additives, chemicals leeched into it from pipes, and chemicals left over from processing. But the primary difference is that tap water has natural minerals in it, such as calcium and magnesium, which can leave deposits in you teapot and on your shower head, but are actually healthier for drinking. Depending on what minerals and other chemicals are in the tap water, it can taste much better or much worse than distilled water, which has a flat taste.
