Weak and strong should not be mistaken for dilute and concentrated. A dilute acid has the acid molecules mixed with a large amount of water, so that there is only a low concentration of H + ions.

This means that, for a given concentration in aqueous solution, the stronger an acid, the lower the pH. The more concentrated the solution of an acid, the lower its pH will be. Key fact If the ...

Ibuprofen is a relatively weak acid (pka 4.4) and its solubility in water or at acid pHis very low. This results in a relatively long residence time in the acid environment of the stomach ...

When it’s functioning properly, it opens to let food in, and then closes to keep stomach acid from flowing back up. However, ...