Some students decided to do an experiment with a can of soda. They opened a 340 g can of soda and left it open for a day. They then measured the soda can and found it was 332 g. The uncertainty in the measurement was 2 g. They then poured some of the soda in a glass and observed that it was no longer fizzy. Which of these statements explain what happened during the experiment?*1 pointBecause the gas in the soda leaves the open soda can, increasing the mass of the systemBecause the gas in the soda leaves the open soda can, decreasing the mass of the systemBecause gases that surrounds the soda can takes in, increasing the mass of the systemBecause gases that surrounds the soda can takes in, decreasing the mass of the system
Question
Some students decided to do an experiment with a can of soda. They opened a 340 g can of soda and left it open for a day. They then measured the soda can and found it was 332 g. The uncertainty in the measurement was 2 g. They then poured some of the soda in a glass and observed that it was no longer fizzy. Which of these statements explain what happened during the experiment?*1 pointBecause the gas in the soda leaves the open soda can, increasing the mass of the systemBecause the gas in the soda leaves the open soda can, decreasing the mass of the systemBecause gases that surrounds the soda can takes in, increasing the mass of the systemBecause gases that surrounds the soda can takes in, decreasing the mass of the system
Solution
The correct statement that explains what happened during the experiment is: "Because the gas in the soda leaves the open soda can, decreasing the mass of the system".
Here's why:
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The students opened a can of soda, which was initially 340g.
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They left it open for a day. During this time, the carbon dioxide (the gas that makes the soda fizzy) escaped from the soda.
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They then measured the soda can and found it was 332g. The decrease in weight (from 340g to 332g) is due to the loss of carbon dioxide gas.
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The uncertainty in the measurement was 2g, but this doesn't change the fact that the weight decreased.
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When they poured some of the soda in a glass, they observed that it was no longer fizzy. This is further evidence that the carbon dioxide gas had escaped.
So, the loss of gas from the soda decreased the overall mass of the system (the soda can).
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