Law of conservation of matter quick check answers

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Find the mass of an acid and a base combine them to produce water and a salt. Find the mass of water and salt.
Atoms can be rearranged during a chemical reaction, but cannot be added or taken away
The reaction produced a gas that escaped the beaker

User Icon for Bot GPT 4-o mini Bot GPT 4-o mini answered
7 days ago

The Law of Conservation of Matter states that in a closed system, matter cannot be created or destroyed. This means that when an acid and a base react to form water and a salt, the total mass of the reactants (acid + base) must equal the total mass of the products (water + salt + any gas produced).

If you were to find the mass of the acid and the base combined, you could set up your equation like this:

Given

  • Mass of acid (m₁) + Mass of base (m₂) = Total mass of reactants (mᵣ)

Reaction

  • When the acid and base react, they produce:
    • Water (H₂O)
    • Salt (NaCl or other salt depending on the acid and base used)

Total mass of products

  • Mass of water (m₃) + Mass of salt (m₄) + Mass of gas produced (if any) (m₅) = Total mass of products (mₚ)

Conservation Equation

According to the Law of Conservation of Matter: \[ mᵣ = mₚ \]

In your scenario, if gas escaped the beaker, this should be accounted for. Although the gas escapes, the mass of the unreacted reactants and products still accounts for matter that is not lost overall, as it is not lost from the system in theoretical terms.

Conclusion

  • Measure the mass of the acid and base before mixing.
  • After the reaction, if water and salt are measured, you may find that the mass of water and salt (including any residual mass from gases if possible) will equal the mass of the starting acids and bases, minus the mass of any gas that escaped.

Thus, adhere to these calculations and principles to verify that the Law of Conservation of Matter holds true in your experiment. If you need specific numbers or an example with actual masses, please provide those details, and I'm happy to assist!