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?
also the graph is 45 grams of salty liquid and 10 grams of carbon dioxide
the responses to the question are
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?
In a typical chemical reaction involving baking soda (sodium bicarbonate, NaHCO3) and vinegar (acetic acid, CH3COOH), the reactants are transformed into new products. The reaction usually proceeds as follows:
NaHCO3 (s) + CH3COOH (aq) → CH3COONa (aq) + H2O (l) + CO2 (g)
Where the products are sodium acetate (CH3COONa), water (H2O), and carbon dioxide (CO2).
According to the law of conservation of mass, the mass of the reactants before the reaction must equal the mass of the products after the reaction, because mass can neither be created nor destroyed in a chemical reaction.
Based on the information you provided, the mass of the products after the reaction is given by the sum of the mass of the salty liquid and the mass of the carbon dioxide:
- Salty liquid: 45 grams
- Carbon dioxide (CO2): 10 grams
Adding these together, we get the total mass of the products:
Total mass of products = 45 grams (salty liquid) + 10 grams (CO2) = 55 grams
Since the mass of the products must equal the mass of the reactants, the combined mass of baking soda and vinegar before the reaction would also be 55 grams.