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A precipitate might form in tap water but not in distilled water because the solids that form precipitates have already been removed from distilled water. Precipitation is part of the distillation process.

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9y ago
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11y ago

Tap water can contain impurities such as minerals, and other substances though usually harmless for human consumption in most developed countries. Because of the "extra" substances(contaminates) in tap water the solution you are preparing has the possibility of reacting with the contaminates producing different results than intended. Distilled water has been more or less "purified" of the contaminants so that you are fully aware of what is in your solution and can work with one less worry of your solution being contaminated.

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Delano Vanover

Lvl 2
3y ago

I boil tap water in three gallon stainless steel container and each time the water cools a fair amount of white mineral precipitates - Ca + Mg - collecting on the interior surface of the container, also a fai amount freely precipitates and collects at the bottom of the container. I have drank the water for years.

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12y ago

there's a diffusion of bubbles when tap water is boiled

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Q: Why would distilled water not tap water would be used to prepare solutions?
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How do you prepare rainwater to distilled water?

If you want to make distilled water from rainwater, you would perform distillation on the rainwater.


Why should distilled water and not tap water be used to prepare solutions?

Water bath is used for uniform and steady heat transferring by heating water in it. If distilled water is not used during heating process all the salts present in normal water will settle down on the surface causing scaling and decreasing heat transfer. Distill water is free from salts and compound which form scale like calcium carbonate etc. Water-bath with distilled water will work with efficiency and low maintenance.


How do you prepare 1 percent trisodium citrate?

You would wan to dilute the trisodium citrate in distilled water to create a 1% solution. So if you wanted 100mL of solution, you would mix 1mL of trisodium citrate with 99mL of distilled sterile water.


Does distilled water contain glucose?

Distilled water is close to pure water, and if it was distilled in a clean environment it would be pure water. Thus no, it would not have maltose ( a sugar) in it.


When growing sugar crystals in tap water or distilled water how would you start your variable?

distilled water


Distilled water does not contain any of the organic compounds. What might any positive results with distilled water indicated?

Distilled water is when it is just h2o, any positive results would man that it was not/is not distilled.


Why do you need distilled water in preparation of Naoh solution sodium carbonate and oxalic acid solution?

Distilled water is the closest one can get with conventional methods to pure water, which would be ideal to create solutions. Tap water is typically not used because it contains minerals and other foreign materials that can affect the solution itself, and alter results.


Distilled water pure substance?

You may regard distilled water as a pure substance. Common salt would be another, as would refined sugar.


If a grocer wanted to keep his fresh vegetables fresh and crispy would he spray distilled water salt water or no water at all on them?

Of the three, he would use distilled water. In reality he would use tap water.


What would happen if you placed a slice of cucumber in distilled water?

If a cucumber is placed in distilled water, the water molecules will flow into the cell by osmosis. This happens because the distilled water solution has a lower osmotic pressure than the cucumber cell.


Would distilled water test negative for starch?

Theoretically, distilled water should test negative for just about everything but wetness!


Is distilled water a heterogeneous or homogeneous?

Distilled water is a compound, not a mixture, because it is just pure H2O.