Question
In an experiment, mixing baking soda and vinegar produced a combination of salty liquid and carbon dioxide as shown in the following graph. What was the combined mass of the baking soda and vinegar before mixing?
A vertical bar graph shows two bars on a first quadrant coordinate plane. The horizontal axis has labels salty liquid and carbon dioxide, and the vertical axis labeled Mass in grams goes from 0 to 50 in increments of 10. The bar for salty liquid is at 45. The bar for carbon dioxide is at 10.
(1 point)
Responses
55 grams
55 grams
45 grams
45 grams
35 grams
A vertical bar graph shows two bars on a first quadrant coordinate plane. The horizontal axis has labels salty liquid and carbon dioxide, and the vertical axis labeled Mass in grams goes from 0 to 50 in increments of 10. The bar for salty liquid is at 45. The bar for carbon dioxide is at 10.
(1 point)
Responses
55 grams
55 grams
45 grams
45 grams
35 grams
Answers
GPT-4o mini
In the experiment, when baking soda (sodium bicarbonate) and vinegar (acetic acid) are mixed, the reaction produces carbon dioxide gas and a salty liquid (sodium acetate solution). The vertical bar graph shows that the mass of the salty liquid is 45 grams and the mass of the carbon dioxide is 10 grams.
Since carbon dioxide is a gas, the mass of the gas produced during the reaction is not included in the total mass of the reactants. The mass of the products does not account for the gas, as gas is not typically weighed out in the experiment.
To find the combined mass of the baking soda and vinegar before mixing, we can add the mass of the salty liquid to the mass of carbon dioxide:
Salty liquid mass = 45 grams
Carbon dioxide mass = 10 grams
However, we are looking for the total mass of the baking soda and vinegar that was used in the reaction, not the products. The mass before mixing is equal to the total mass after accounting for the gas that escaped.
In this case, the mass of the baking soda and vinegar would be:
Mass of baking soda + Mass of vinegar = Mass of salty liquid + Mass of carbon dioxide
Before combining, since the carbon dioxide would not be included in the products shown:
Let’s denote the mass of the baking soda and vinegar combined as X,
X = salty liquid mass + mass of gas not counted:
If we only see the products without accounting for what went into the mix, we already have the initial measurement from the graph.
However, let's reconsider the total:
Since the total mass is still balanced based on the reaction, and there was a production of gas, we can assume the total mass before the reaction should also give a similar outcome:
Total mass before = 45 (salty liquid) + 10 (actually lost carbon dioxide but part of total) = 55 grams.
Thus, the answer is:
**55 grams**.
Since carbon dioxide is a gas, the mass of the gas produced during the reaction is not included in the total mass of the reactants. The mass of the products does not account for the gas, as gas is not typically weighed out in the experiment.
To find the combined mass of the baking soda and vinegar before mixing, we can add the mass of the salty liquid to the mass of carbon dioxide:
Salty liquid mass = 45 grams
Carbon dioxide mass = 10 grams
However, we are looking for the total mass of the baking soda and vinegar that was used in the reaction, not the products. The mass before mixing is equal to the total mass after accounting for the gas that escaped.
In this case, the mass of the baking soda and vinegar would be:
Mass of baking soda + Mass of vinegar = Mass of salty liquid + Mass of carbon dioxide
Before combining, since the carbon dioxide would not be included in the products shown:
Let’s denote the mass of the baking soda and vinegar combined as X,
X = salty liquid mass + mass of gas not counted:
If we only see the products without accounting for what went into the mix, we already have the initial measurement from the graph.
However, let's reconsider the total:
Since the total mass is still balanced based on the reaction, and there was a production of gas, we can assume the total mass before the reaction should also give a similar outcome:
Total mass before = 45 (salty liquid) + 10 (actually lost carbon dioxide but part of total) = 55 grams.
Thus, the answer is:
**55 grams**.