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.

One to earmark for the winter months, lactobacillus can help repair the skin as it deals with changing temperatures (cold weather outside and central heating and fires inside), a lack of moisture in ...

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 ...

When carbon dioxide from the air dissolves in rainwater, it forms a weak acid that attacks soft rocks, riddling them with holes like Swiss cheese. Sinkholes can occur gradually when the surface ...