AP BIOLOGY

Detailed explanation-1: -An acidic solution has a high concentration of hydrogen ions (H +start superscript, plus, end superscript), greater than that of pure water.

Detailed explanation-2: -A solution of pH value less than 7 is acidic in nature, while greater than 7 indicates a basic solution. Therefore, the solution with pH = 6 is acidic and has more hydrogen ion concentration than the solution of pH = 8, which is basic.

Detailed explanation-3: -Acids are chemical compounds that release hydrogen ions (H+) when placed in water. For example, when hydrogen chloride is placed in water, it releases its hydrogen ions and the solution becomes hydrochloric acid.

Detailed explanation-4: -The hydrogen ion concentration in pure water is10−7g. ions/lit. An aqueous solution will be acidic, if its hydrogen ion concentration in g.

Detailed explanation-5: -Several important acids can be classified as polyprotic acids, which can lose more than one H+ ion when they act as Brnsted acids. Diprotic acids, such as sulfuric acid (H2SO4), carbonic acid (H2CO3), hydrogen sulfide (H2S), chromic acid (H2CrO4), and oxalic acid (H2C2O4) have two acidic hydrogen atoms.