An Alka-Seltzer antacid tablet bubbles vigorously when placed in water but only slowly when placed in an alcoholic beverage of the same temperature containing a 50:50 mix of alcohol and water.Propose a probable explanation involving the relationship between the speed of a reaction and molecular collisions.
A)The alcohol absorbs the carbon dioxide bubbles before they escape the liquid phase.
B)Alcohol molecules are more massive than water molecules,hence they move slower and their collisions are not as forceful.
C)The tablet reacts with water but not the alcohol.
D)In a 50:50 mix there are fewer water molecules for the antacid molecules to collide with.

Question

Quizplus · Accepted Answer

In a 50:50 mix, there are fewer water molecules available for the antacid molecules to collide with. This reduces the probability of molecular collisions and, therefore, the reaction rate is slower. This can explain why the Alka-Seltzer tablet bubbles slowly when placed in an alcoholic beverage of the same temperature containing a 50:50 mix of alcohol and water.

An Alka-Seltzer Antacid Tablet Bubbles Vigorously When Placed in Water