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Water ionizes into hydrogen ions and hydroxide ions It has a what value?
Wiki User
∙ 13y ago
Kw (:
Wiki User
∙ 13y ago
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Water ionizes into hydrogen ions and hydroxide ions. It has a value.?
Kw (:
How do you measure the PH value of hydrocarbon?
Since hydrocarbons do not dissolve in water, they have no pH. That is to say, they do not influence the concentration of either hydrogen or hydroxide ions. They do contain hydrogen, but the hydrogen in a hydrocarbon does not ionize.
Why is water not alkaline at 60 degrees celsius when the OH value in water at 60 degrees is greater that the value at room temperature-PLEASE help ASAP?
A solution is acidic if there is an excess of hydrogen ions over hydroxide ions. In the case of pure water, there are always the same number of hydrogen ions and hydroxide ions. That means that the water remains neutral - even if its pH changes.
Why is the pH value of pure water pH 7?
Because water is completely neutral, since it is HOH, which means equal number of hydrogen and hydroxide ions.
What pH indicates that the most hydroxide ions are present?
The highest pH value in a group of such values indicates that the greatest concentration of hydroxide ions is present in the substance with the highest pH. This is true because a higher pH indicates a lower concentration of hydrogen ions, and the product of the molar concentrations of hydrogen and hydroxide ions must always be 10-14 at standard temperature and pressure in a mixture that is mostly water.
Water ionizes into hydrogen ions and hydroxide ions. It has a value.?
Kw (:
When water ionizes it produces equal amounts of hydrogen and hydroxide ions which can re associate with each other?
Yes, due to same reason water is neutral and its pH value is 7.
How do you measure the PH value of hydrocarbon?
Since hydrocarbons do not dissolve in water, they have no pH. That is to say, they do not influence the concentration of either hydrogen or hydroxide ions. They do contain hydrogen, but the hydrogen in a hydrocarbon does not ionize.
Why is water not alkaline at 60 degrees celsius when the OH value in water at 60 degrees is greater that the value at room temperature-PLEASE help ASAP?
A solution is acidic if there is an excess of hydrogen ions over hydroxide ions. In the case of pure water, there are always the same number of hydrogen ions and hydroxide ions. That means that the water remains neutral - even if its pH changes.
Why is the pH value of pure water pH 7?
Because water is completely neutral, since it is HOH, which means equal number of hydrogen and hydroxide ions.
What pH indicates that the most hydroxide ions are present?
The highest pH value in a group of such values indicates that the greatest concentration of hydroxide ions is present in the substance with the highest pH. This is true because a higher pH indicates a lower concentration of hydrogen ions, and the product of the molar concentrations of hydrogen and hydroxide ions must always be 10-14 at standard temperature and pressure in a mixture that is mostly water.
What happens to rubidium chloride when added to water?
Rubidium is a large sized atom of alkali metals family and is highly reactive towards water when it is added in water Rubidium hydroxide is formed along with bubbles of hydrogen gas this hydroxide is strong alkali so pH value of water shows a change from 7 to 12 , 13 or 14.
Can hydrogen bond with water?
No. First of all, the oxygen is not willing to give up its electrons and even less willing to accept electrons. Second, water is polar and hydrogen is non-polar. Third, there is no entropic or enthalpic value value in hydrogen bonding with water. Finally, if hydrogen were to bond with water, then that would create a hydrogen anion which is extremely unstable. Thus, it can't bond with water at room temperatures, at least.
What is meant by Sodium acetate is a basic salt?
Sodium acetate is called a basic salt because a solution of it in initially pure water has a pH value well above the neutral value of 7. This occurs because acetate ions when dissolved in water must come to an equilibrium in the ionic reaction C2H3O2-1 + H2O <-> C2H4O2 + OH-1 and sodium ions when dissolved in water must come to an equilibrium in the ionic reaction Na+1 + H2O <-> NaOH + H+1. Additionally, water itself must maintain an equilibrium in the ionic reaction H2O <-> H+1 + OH-1. The values of these three equilibrium constants are such that the net result is a higher concentration of hydroxide ions than of hydrogen ions in a solution of sodium acetate. These relative concentrations of hydroxide and hydrogen ions is the defining characteristic of a basic (or alkaline) aqueous solution: Such a relative concentration of hydroxide and of hydrogen ions, although not all the other characteristics of a sodium acetate solution, could be achieved by dissolving an appropriate amount of the base sodium hydroxide in initially pure water.
What is the solution that contains more hydronium ions than hydroxide ions?
If it is in water (supposedly meant by questioneer), the pH value is below 7.0, so it is an acid solution: more H+ than OH-
What is the value of hydrogen ion?
If you think to electrical charge the hydrogen ion (H+) is a cation. In water other species as (H3O)+ can exist.
What are Some characteristics that would contribute to low or high pH value are?
The only characteristics whic affect pH are the presence of hydrogen or hydroxide ions in the compound, and/or the possibility of absorbing them from solutions.
