The Strength of Acids in Water,n Which of the following salts is least soluble in water? CaSO4 KSp = 4.9 x 10-5 AIPO4 Ksp = 9.8 x 10-21 O BaCO3 Ksp = 2.6 x 10-9 Question 43 (2 points) Which of the following is a strong acid in water? OH2503 OHF OH3PO4 all are strong acids none are a strong acid

The Strength of Acids in Water

Acids are molecules or ions that donate protons, or H+ ions, to other substances in aqueous solutions. As a result, some acids are considered to be strong, and capable of completely dissociating into their ions in water, while others are weak and only partially dissociate. The strength of an acid depends on the extent of its dissociation in aqueous solutions and can be measured by its dissociation constant, denoted by Ksp. Among the strong acids are hydrohalic acids, such as hydrochloric acid (HCl) and hydrofluoric acid (HF). As their name implies, hydrohalic acids contain both hydrogen and halide ions, and they are capable of releasing both H+ and halide ions when dissolved in water (Heller & Myers, 2019). Similarly, sulfuric acid (H2SO4) is also a strong acid, as it releases two H+ ions for every molecule of acid dissolved in water (Heller & Myers, 2019). On the other hand, weak acids typically contain only H+ ions, such as acetic acid (CH3COOH) and phosphoric acid (H3PO4). These acids are less capable of releasing H+ ions in water, resulting in a lower dissociation constant and weaker acidity (Heller & Myers, 2019). Therefore, it is clear that the strength of an acid in water is determined by the extent of its dissociation in water, which can be measured by its dissociation constant. While some strong acids are capable of releasing both H+ and halide ions, weak acids typically contain only H+ ions and are less capable of releasing H+ ions in water. Cont…