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βˆ™ 12y ago
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βˆ™ 2mo ago

Yes, a small amount of OH- ions are present in pure water due to the autoionization of water molecules. This process results in the formation of equal amounts of H+ and OH- ions, making pure water neutral.

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βˆ™ 10y ago

Pure water contains water molecules (H20), hydronium ions (H+), and hydroxide ions (OH-). The concentration of both hydronium ions and hydroxide ions is 1. 0 x 10^(-7).

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βˆ™ 11y ago

1.00*10-7 molar.

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Q: Is OH- present in pure water?
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What is the name of acid present in pure water?

there is no acid present in pure water.


Which two ions are present in pure water?

In pure water, two ions that are present in small concentrations are hydronium ions (H3O+) and hydroxide ions (OH-). These ions result from the autoionization of water molecules. The concentration of these ions in pure water is very low.


Which molecule represents an ion found in a glass of water?

OH- and H+


Does Pure water have more H ions than OH- ions?

No, pure water has an equal amount of H+ ions (also known as protons) and OH- ions (hydroxide ions) due to its neutral pH. This balance occurs because water undergoes autoionization, where a small fraction of water molecules dissociate into H+ and OH- ions.


Does Dissociation of water produces equal numbers of OH- and H?

Of course,pure water have equal concentrations of H+ and OH-.


What remains after the impurities have been removed from water?

Pure water with a pH of 7. It has only hydrogen and oxygen. One molecule has two atoms of hydrogen and one atom of oxygen. The water will disassociate into H+ and OH-. Each will be present at 10-7. So we will have H2O, H+, and OH-.


Is the number of H plus and OH- ions is equal in water?

In pure water, they are equal.


Why does pure water have a natural pH?

Pure water has a natural Ph due to the rate of dissociation to H+ and OH- is equal to rate of association to form H2O. Pure water has no free ions.


Is pure water neutral?

The pure water is neither base nor acid. This is because in pure water, ther is a small dissociation of water molecules giving the same amount of H+ and OH- ions. Therefore, ther is no excess of acid nor base ions. Reaction: H20 -> H+ + OH- The concentration of [H+]=[OH-]=10^-7 mol/dm3 You can read more here: http://ibchem.com/IB/ibnotes/full/aab_htm/18.3.htm


What is amount of sodium hydroxide present in 1litre of water?

In pure water, none.


Even pure water contains measurable quanitites of H plus and OH- because of what?

Even pure water contains measurable quantities of H+ and OH- because a small fraction of water molecules undergo self-ionization, where two water molecules react to form a hydronium ion (H+) and a hydroxide ion (OH-). This equilibrium reaction occurs due to the autoionization of water molecules.


What is the pH of pure water in the beaker before the acid is added?

The pH of pure water is 7 before the acid is added. This is because pure water is neutral, with an equal balance of hydrogen (H+) and hydroxide (OH-) ions.