Answer:
pH = 3.02
Explanation:
Acetic Acid is a weak acid (HOAc) that ionizes only ~1.5% as follows:
HOAc ⇄ H⁺ + OAc⁻.
In pure water the hydronium ion concentration [H⁺] equals the acetate ion concentration [OAc⁻] and can be determined* using the formula [H⁺] = [OAc⁻] = SqrRt(Ka·[acid]) = SqrRt(1.8x10⁻⁵ x 0.0500)M = 9.5x10⁻⁴M.
By definition, pH = -log[H⁺] = -log(9.5x10⁻⁴) = 3.02
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*This formula can be used to determine the [H⁺] & [Anion⁻] concentrations for any weak acid in pure water given its Ka-value and the molar concentration of acid in solution.
process by which one separates compounds from one another by passing a mixture through column that retains some compounds longer than others.
Options if it’s true or false true
Yes, it is a correct approach because endothermic reactions absorb heat. In consequence, the amount of heat can be used to classify this reaction.
<h3>Endothermic and exothermic reactions</h3>
An exothermic reaction is a type of chemical reaction that releases heat, thereby increasing the temperature of its surrounding environment.
Conversely, an endothermic reaction can absorb heat, thereby cooling its surrounding environment.
In consequence, the amount of heat measured after the reaction can be indicative of the type of chemical reaction.
Learn more about endothermic reactions here:
brainly.com/question/6506846
I swear i think it is 3.22
