The solution is called saturated solution because it cannot hold solute particles anymore at that temperature!. Hope it helps :)
Answer:
True.
Explanation:
ΔHfusion value is defined as the amount of energy needed to produce a phase change in 1 mole of substance at constant pressure, specifically from solid to liquid. Let´s imagine two random substances A and B, with ΔHfusionA= 100 J/mol and ΔHfusionB=200J/mol. If we apply 150J of energy in 1 mol of each substance, we have enough energy for melt A, but we still need 50J for melt B. For that reason a low value of ΔHfusion means is easier to convert it from solid to liquid.
Solubility is the maximum amount of a substance that will dissolve in a given amount of solvent at a specific temperature. There are two direct factors that affect solubility: temperature and pressure. Temperature affects the solubility of both solids and gases, but pressure only affects the solubility of gases.
An acid-base reaction or a neutralization reaction is a <u>chemical reaction that occurs between an acid and a base producing a salt and water</u>. The acids and bases can be strong or weak depending on their degree of ionization in water.
Butyric acid is a weak acid and in water it is ionized in the following way, loosing a proton (H+):
HC4H7O2 (aq) ⇆ H+ (aq) + C4H7O2- (aq)
On the other hand, potassium hydroxide is a strong base, so it will be completely ionized in water:
KOH(aq) → K+(aq) + OH-(aq)
Then the <u>net acid-base reaction</u> between butyric acid and KOH is:
HC4H7O2 (aq) + OH- (aq) ⇆ H2O + C4H7O2- (aq)
It is valid to consider only the OH- produced from the ionization of KOH in water since, as mentioned, this molecule is completely ionized. Also, we do not include the K + in the net equation since it is a spectator ion, it does not undergo chemical changes.