A student was adding baking soda and vinegar in a bottle to conduct an experiment. They then put a balloon on top of the bottle immediately after adding them together. The student observed that the balloon inflated and got larger. The student then predicted that the chemical reaction between the vinegar and the baking soda had created brand new matter, and would have more mass at the end of the reaction. Would you agree with the student’s prediction or not? Explain your answer.
I would not agree with the student's prediction that the chemical reaction between vinegar and baking soda created brand new matter that would have more mass at the end of the reaction. In a chemical reaction, the total mass of the reactants should be equal to the total mass of the products.
In this experiment, when the baking soda (sodium bicarbonate) reacts with vinegar (acetic acid), it produces carbon dioxide gas, water, and sodium acetate. The carbon dioxide gas is what inflates the balloon. The mass of the reactants (baking soda and vinegar) would be equal to the mass of the products (carbon dioxide gas, water, and sodium acetate) at the end of the reaction.
Therefore, there isn't any brand new matter created during this chemical reaction, just a rearrangement of atoms. The student may have observed that the balloon got larger because of the gas produced, but the total mass of the system should remain the same.
i don't agree with him because the chemical reaction between vinegar and baking soda created brand new matter that would have more mass at the end of the reaction.
I understand your perspective, but according to the Law of Conservation of Mass in chemistry, mass cannot be created or destroyed in a chemical reaction - it can only be rearranged. This means that the total mass of the reactants should always be equal to the total mass of the products.
In the case of the reaction between vinegar (acetic acid) and baking soda (sodium bicarbonate), the carbon dioxide gas produced during the reaction is what inflates the balloon. Although the volume or size of the balloon may increase due to the gas, the total mass of the reactants (vinegar and baking soda) should be equal to the total mass of the products (carbon dioxide gas, water, and sodium acetate).
Therefore, it is unlikely that the chemical reaction created brand new matter with more mass at the end of the reaction. The increase in size of the balloon is a result of the gas that was produced during the reaction, not because of the creation of new matter with more mass.
so, i don't agree with him because the chemical reaction between vinegar and baking soda created brand new matter that would have more mass. In a chemical reaction, the total mass of the reactants should be equal to the total mass of the products.
Yes, that is correct. The Law of Conservation of Mass states that in a closed system, matter cannot be created or destroyed in a chemical reaction. Therefore, the total mass of the reactants should be equal to the total mass of the products.
In the case of the reaction between vinegar and baking soda, the mass of the balloon plus the gas inside it should be equal to the total mass of the reactants (vinegar and baking soda), as well as the products of the reaction (carbon dioxide gas, water, and sodium acetate), once the reaction is complete.
Therefore, the chemical reaction between vinegar and baking soda does not create brand new matter with more mass at the end of the reaction. The increase in size of the balloon is a result of the gas produced during the reaction.