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What is true of the hydroxide and hydrogen ions in a solution of pH 7?
Wiki User
∙ 11y ago
At pH 7, the concentration of hydroxide and hydrogen (hydronium) ions is equal; both concentrations are equal to 10-7 mol/L.
Wiki User
∙ 11y ago
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A substance that forms hydroxide ions in a water solution is a base?
True
Is an acid is any compound that forms H plus ions in solution true?
Not all the time. Only acids that react with metals will give of Hydrogen (H) Acid + Metal --> Salt + Hydrogen
Which of the following is true about bases they tend to decrease PH solution or they release hydroxide ions in solutions?
Technically, neither is entirely true. Bases will not decrease the pH, but neither do they always release hydroxide. For example, ammonia and the amines are basic, but this is because they remove hydronium, not because they add hydroxide. They release hydroxide ions in solution.
Is it true that in strong acids most of the molecules break up into ions in the solution?
Yes, that is true. Strong acids ionize, in a aqueous solution. It is the released hydrogen ions that make them acids.
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.
Is an acid a substance that produces hydroxide ions in a water solution?
False
A substance that forms hydroxide ions in a water solution is a base?
True
What is true about the relative concentrations of hydronium and hydroxide ions in an acid solution?
In an acidic solution, the relative concentration of hydronium ions will always be higher than hydroxide ions. This means that the relatively concentration of hydroxide ions will always be lower than hydronium ions in an acidic solution. The reason for this is that in a neutral solution, the concentration of both hydronium ions and hydroxides ions are equal (both are 10-7). By making the concentration of hydronium ions greater than the concentration of hydroxide ions, the solution becomes acidic.
Is it true that The pH scale measures the concentration of hydroxide ions?
No, pH measures the concentration of hydrogen ions. pOH would measure hydroxide concentration.
Is an acid is any compound that forms H plus ions in solution true?
Not all the time. Only acids that react with metals will give of Hydrogen (H) Acid + Metal --> Salt + Hydrogen
The concentration of hydrogen ions in solution is the pH of the solution the answer has to be either true or false?
False.
Which of the following is true about bases they tend to decrease PH solution or they release hydroxide ions in solutions?
Technically, neither is entirely true. Bases will not decrease the pH, but neither do they always release hydroxide. For example, ammonia and the amines are basic, but this is because they remove hydronium, not because they add hydroxide. They release hydroxide ions in solution.
A base is a substance that forms hydroxide ions in a water solution.?
A substance that forms hydroxide ions in a water solutoin is a base -- TRUE -- apex:)
What is true about a hydroxide ions?
Hydroxide ions are anions with the chemical formula (OH)-.
Is it true that in strong acids most of the molecules break up into ions in the solution?
Yes, that is true. Strong acids ionize, in a aqueous solution. It is the released hydrogen ions that make them acids.
The reason pure water has a pH of 7 is that there is the same concentration of hydrogen and hydroxide ions on the self-ionization of water?
true
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.
