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How are the concentrations of hydronium ions and hydroxide ions in aqueous solutions related?
The pH of a solution is related directly to its concentrations of hydronium ions(H3O^+) and hydroxide ions(OH-). Acidic solutions have more hydronium ions than hydroxide ions. Neutral solutions have equal numbers of the 2 ions. Basic solutions have more hydroxide ions than hydronium ions.
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How are hydroxide ions represented?
Hydroxide ions are represented by the chemical formula OH-. In aqueous solutions, they can also be denoted as [OH]-.
Hydronium ions react with hydroxide ions to form?
Hydronium ion, H3O+, is what gives a low pH to an aqueous solution. Hydronium ion is made when an acid donates a hydrogen ion to a water molecule. Hydroxide ion, OH-, gives a higher pH to an aqueous solution. Hydroxide ions are found in bases; a base donates hydroxide ions to water. Combining H3O+ + OH- makes 2 H2O. In other words, an acid and a base combine to neutralize each other as water.
Calculate the hydronium ion concentration in an aqueous solution that contains 2.50 x 10-4 M in hydroxide ion?
By using the auto-ionization constant of water (Kw = 1.0 x 10^-14), you can find the hydronium ion concentration by dividing Kw by the given hydroxide ion concentration. The hydronium ion concentration would be 4.00 x 10^-11 M in this case.
What is the product of Aqueous solutions of phosphoric acid and sodium hydroxide are mixed together?
When aqueous solutions of phosphoric acid (H3PO4) and sodium hydroxide (NaOH) are mixed together, a neutralization reaction occurs. This results in the formation of water and sodium phosphate (Na3PO4) as the products.
Aqueous solutions of Barium Nitrate and Sodium Hydroxide are combined Does a precipitate form?
Yes, a white precipitate of barium hydroxide would form due to the reaction between barium nitrate and sodium hydroxide forming insoluble barium hydroxide. This can be observed as a cloudiness or white solid settling at the bottom of the solution.
What conditions must be met in order for an aqueous solution to be neutral?
The concentrations of hydronium and hydroxide ions are equal
Does a strong base produce the most hydronium ions in an aqueous solution?
No, you mixed it up. Hydronium H3O+ from strong acid and Hydroxide OH- from strong base (alkaline)
What is An aqueous solution that contains more hydroxide ions than hydronium ions?
An aqueous solution that contains more hydroxide ions than hydronium ions is considered to be basic or alkaline. This imbalance in ion concentration leads to a pH greater than 7. Examples of such solutions include sodium hydroxide (NaOH) and potassium hydroxide (KOH) solutions.
What statement about Arrhenius acids is FALSETheir aqueous solutions are electrolytesTheir water solutions are called aqueous acids They increase the concentration of hydroxide ions in aqueous solutionThey are molecular compounds with hydrogen ions?
The answer is: They increase the concentration of hydroxide ions in aqueous solution.
An aqueous solution that contains extra hydroxide ions is?
Basic solutions are solutions that have more than a 1E-7 concentration of hydroxide ion. Thus, solutions with "extra" hydroxide ions are basic. On the other hand, solutions with extra hydrogen (hydronium) ions are acidic.
An aqueous solution that contains more hydroxide ions than hydronium ions is a acid?
An aqueous solution with more hydroxide ions than hydronium ions is basic, not acidic. This imbalance in ions indicates a higher pH level. Basic solutions have a pH greater than 7.
What is the ionized form of water?
The ionized form of water is H3O+ (hydronium ion) and OH- (hydroxide ion) in equilibrium with each other in aqueous solutions.
Describe the relationship between hydronium and hydroxide ion concentrations in an aqueous solution?
The relationship between hydronium (H3O+) and hydroxide (OH-) ion concentrations in an aqueous solution is governed by the autoionization of water. In pure water at 25°C, the concentrations of H3O+ and OH- ions are equal at 1.0 x 10^-7 M each due to water molecules acting as both acids and bases. This relationship is represented by the equation [H3O+][OH-] = 1.0 x 10^-14 at 25°C.
What creates a hydroxide ion when it ionizes?
A hydroxide ion (OH-) is created when a water molecule (H2O) ionizes by losing a hydrogen ion (H+) to create a hydroxide ion and a hydronium ion (H3O+). This process can occur in aqueous solutions.
What conditions must be met in order for an aqueous solution to be called neutral?
An aqueous solution is considered neutral when it has a pH of 7, indicating an equal concentration of hydrogen ions (H+) and hydroxide ions (OH-) in the solution. This balance ensures that the solution is neither acidic nor basic.
Is hydronium ion acidic?
Yes, the hydronium ion (H3O+) is acidic because it is the conjugate acid of water and can donate protons in aqueous solutions. It is a common indicator of acidic conditions in solution.
What reacts with water but is not dangerous?
Water reacts with water and isn't dangerous (the equilibrium dissociation of hydrogen into hydronium and aqueous hydroxide).
