If a substance is a strong elctrolyte, is it necessarily a strong acid?
I'm trying to understand what it takes to make an acid a strong acid.
Answer:
happybunny,
No, a substance that is a strong electrolyte is not necessarily a strong acid. In order to be an acid, the substance must cause H+ ions to be generated when it is dissolved in water. For example, NaCl is a strong electrolyte because it forms Na+ and Cl- ions in solution. But there are no H+ ions, so NaCl is NOT acidic.
In order to be a STRONG acid, the substance must both produce H+ ions in solution, like any acid, but also ionize 100% so that every single molecule that enters the solution is dissociated into 2 ions. There are only 7 strong acids, and they are: HCl, HBr, HI, HNO3, H2SO4, HClO3, and HClO4. They are all strong acids because they will dissociate completely in water into an H+ ion, and a negative ion (notice that they all have H as part of their formulas). Any other acid is a weak acid.
a strong acid is an acid that ionizes almost completely in water. an electrolyte is something that will conduct electricity very well in water. all strong acids are good electrolytes, but not all electrolytes are strong acids.
mnrlboy is almost right. up to the point, where he takes into consideration only part of the inorganic chemistry that he knows and ignores everything else.
no, although strong acids are strong electrolytes, the reverse is not true. strong electrolytes are just compounds that ionize completely in water, including strong bases, strong acids and their salts.
there are organic acids, such as p-tosylsulfonic acid, that are also pretty strong (pKa -2.5).
there are also the so-called super acids, like HSbF6, which are much stronger (up to 1 000 000 000 times) than 100% H2SO4.
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Answer:
happybunny,
No, a substance that is a strong electrolyte is not necessarily a strong acid. In order to be an acid, the substance must cause H+ ions to be generated when it is dissolved in water. For example, NaCl is a strong electrolyte because it forms Na+ and Cl- ions in solution. But there are no H+ ions, so NaCl is NOT acidic.
In order to be a STRONG acid, the substance must both produce H+ ions in solution, like any acid, but also ionize 100% so that every single molecule that enters the solution is dissociated into 2 ions. There are only 7 strong acids, and they are: HCl, HBr, HI, HNO3, H2SO4, HClO3, and HClO4. They are all strong acids because they will dissociate completely in water into an H+ ion, and a negative ion (notice that they all have H as part of their formulas). Any other acid is a weak acid.
a strong acid is an acid that ionizes almost completely in water. an electrolyte is something that will conduct electricity very well in water. all strong acids are good electrolytes, but not all electrolytes are strong acids.
mnrlboy is almost right. up to the point, where he takes into consideration only part of the inorganic chemistry that he knows and ignores everything else.
no, although strong acids are strong electrolytes, the reverse is not true. strong electrolytes are just compounds that ionize completely in water, including strong bases, strong acids and their salts.
there are organic acids, such as p-tosylsulfonic acid, that are also pretty strong (pKa -2.5).
there are also the so-called super acids, like HSbF6, which are much stronger (up to 1 000 000 000 times) than 100% H2SO4.
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