Law Of Conservation Of Mass Lab

373 Words2 Pages
Purpose To prove the law of conservation of mass so that when vinegar and baking soda are added together, the mass of them individually is the same as when they are combined. Hypothesis If vinegar and baking soda are added together then their total mass will be equivalent to both of their masses added together because this relates to the Law of Conservation of Mass since nothing in the reaction will be destroyed or created but rearranged therefore the mass will be equal. Materials -1 Balloon -Safety goggles -2 Beakers -2 Graduated cylinders -5 ml of vinegar -2 Grams of baking soda - Weight scale - Small spoon -1 Filter sheet Procedure 1. Took all safety precautions. Tied back loose hair, put on safety goggles. 2. Gathered materials from the workbench as listed on the materials list. 3. Measured the mass of the balloon and the mass of the empty beakers. 4. 5ml of vinegar was poured into a graduated cylinder. 5. 2g of baking soda were poured into a graduated cylinder. 6. They were both poured into separate beakers. 7. The beaker including the substance in it was measured for its’ mass 8. The mass of the beaker with the substance in it is subtracted from the mass of the empty beaker to find the mass of the substance alone. 8. The physical properties were observed and recorded. 9. Poured the vinegar into the beaker with the baking soda and quickly placed a balloon over the top of the beaker. 10. Observed the chemical reactions and recorded the physical properties of the new substance. 11. Measured the combined substance in its beaker with the balloon on top for its mass. Subtracted the total mass by the mass of the balloon and the mass of the beaker. 12. Checked if the mass of the solution separately was equal to the mass of the baking soda plus the mass of the vinegar. 13. Cleaned up work area and returned all
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