During a science lab investigating chemical reactions, Mrs. Grey's students placed an antacid tablet and Ziploc bag. They recorded the mass of the tablet, 25 grams, and the bag, 60 grams. Then they carefully added 50 grams of water and quickly sealed the bag. The tablet begin to fizz and soon dissapeared. The bag was filled with gas. If the mass of the liquid after the reaction is completed is it still 50 grams, how much gas is produced?
A: 25***
B: 50
C: 60
D: 95
Please help
correct
To determine the amount of gas produced during the chemical reaction, we need to use the law of conservation of mass. According to this law, matter cannot be created or destroyed; it can only change forms.
In this case, we know that the total mass before the reaction is 25 grams (mass of the antacid tablet) + 60 grams (mass of the bag) + 50 grams (mass of water) = 135 grams.
After the reaction, we're told that the mass of the liquid (water) is still 50 grams. This means that the remaining mass is accounted for by the gas produced.
To find the mass of the gas, we subtract the mass of the liquid from the initial total mass: 135 grams - 50 grams = 85 grams.
Therefore, the amount of gas produced during the reaction is 85 grams. None of the answer choices match exactly, but the closest option is D: 95 grams. However, keep in mind that 85 grams is the correct answer based on the information provided.