NURSING ANM AND GNM

Detailed explanation-1: -Among the following, lemon juice is the most acidic substance. Thus, it has highest amount of hydrogen ions.

Detailed explanation-2: -Calculating the pH of lemon juice using its hydrogen ion concentration, pH = −log [H+] = − log [5.4 × 10−3] ≈ 2.27 or 2.3.

Detailed explanation-3: -Given the concentration of all the acidic solutions is equal. However, H2SO4 being the strongest acid will dissociate completely thus giving the highest concentration of H+ ions.

Detailed explanation-4: -Lemon juice, with a pH of 2, has 10-2 moles (or 0.01 moles) of H+ ions in every liter of water. That is, there are more H+ ions in the lemon juice than in the water, so the lemon juice is more acidic.