The glass of water weigh once the antacid pill has dissolved will be less than the 219 grams due to evolution of carbon dioxide.
Mass of effervescent antacid pill = 4.00 g
Mass of water = 110 g
Mass of glass = 105 g
Total mass of the substances together : 4.00 g + 110 g + 105 g = 219 g
Effervescent antacid pill , moment it will get dissolved in water carbon dioxide gas is evolves and hide from the solutions.
This states that mass of the weight of the glass of water with antacid dissolved in it will be less than 219 grams.
Effervescent antacid tablets are made up of aspirin, acid and sodium bicarbonate. When bicarbonate of soda dissolves in water, it reacts with hydrogen ions from the acid and forms carbon dioxide. Because CO₂ is a gas, it forms bubbles inside the water that you simply can see as foam on the surface
Antacids are weak bases that act by neutralizing gastric acid . Raising the pH of the stomach contents leads to suppression of the action of pepsin that exacerbates ulceration due to acid.
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