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Is it true the lower the pH the higher the hydrogen ion concentration?
Wiki User
∙ 9y ago
Yeah, that's true increased hydrogen ion concentration causes acidicity, thus having lowered ph
Wiki User
∙ 9y ago
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What is the relationship between the pH and in hydrogen ion concentration?
pH = -log[H+].Hence lower the pH, higher is the concentration of H+ ions.For exampleAt pH = 1, [H+] = 0.1 MAt pH = 2, [H+] = 0.01 MAt pH = 3, [H+] = 0.001 Mand so on...
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 it true the lower the pH means the greater number of hydrogen ions?
the lower the pH of a solution the more alkaline it is the higher is more acidic. water usually has a pH of around 7.0
What is true of the hydroxide and hydrogen ions in a solution of pH 7?
At pH 7, the concentration of hydroxide and hydrogen (hydronium) ions is equal; both concentrations are equal to 10-7 mol/L.
When the pH is high what is true about the concentration of hydrogen ions?
A numerically high pH , the hydrogen ions are very low . e,.g, pH 12 is a very alkaline solution. A numerically low pH , the hydrogen ions are very high . e.h. pH 2 is very acidic .
Is this true or false Osmosis is the process by which molecules tend to move from an area of higher concentration to an area of lower concentration?
True
Is it true that a low concentration of a chemical slows reaction rate?
I would point your studies towards collision theory. It's not that a low concentration necessarily slows down a reaction, but that a low concentration will have a slower reaction rate than a higher concentration of reactants. A lower concentration means a lower number of reactants in solution, meaning it is less likely for the reactants to collide and create products. With a lot of reactants, it is much more likely for collisions to occur.
What is the relationship between the pH and in hydrogen ion concentration?
pH = -log[H+].Hence lower the pH, higher is the concentration of H+ ions.For exampleAt pH = 1, [H+] = 0.1 MAt pH = 2, [H+] = 0.01 MAt pH = 3, [H+] = 0.001 Mand so on...
Is it true that water tends diffuse from a region where it is lees concentrated to a region where it is highly concentrated?
It is not true. All substances tend to diffuse from an area of higher concentration to that of lower concentration. This is called passive transport(no energy required), or in the case of water, Osmosis. However, if given energy, they can also move from an area of lower concentration to that of higher concentration. This process is called active transport.
Osmosis is the process by which molecules tend to move from an area of higher concentration to an area of lower concentration is this true or false?
falseOsmosis is the diffusion of water through a semi-permeable membrane.
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.
The rate of photosynthesis increases as the concentration of hydrogen gas increases?
true
What type of transport is used to move a molecule from a region of low concentration to a region of high concentriation?
Active transport moves an object from an area of lower concentration to an area of higher concentration. When the reverse is true, passive transport suffices.
Why the specific molar conductivity of 0.01 M KOH is much higher than the specific conducivity of 0.01M KCl?
This is true because KOH has a high concentration of hydrogen ions (H+) and this increases the conductivity of KOH to be significantly higher than that of KCl. KCl has a very highly electronegative ion Cl- Hydrogen bonding occurs at sites of electronegativity which will interfere conductivity at lower concentrations of these Ions
Is it true the lower the pH means the greater number of hydrogen ions?
the lower the pH of a solution the more alkaline it is the higher is more acidic. water usually has a pH of around 7.0
The concentration of hydrogen ions in solution is the pH of the solution the answer has to be either true or false?
False.
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.
