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A perfect Lab Report2

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A perfect Lab Report Name: your name Date: due date Course: SNC__D-0__ Partners names: Dick and Jane Teacher: Mrs. K. Sauvé A Perfect Lab Purpose: To determine the effects of mixing baking soda and vinegar. Hypothesis: It is predicted that when baking soda and vinegar are mixed together there will be a chemical change. This is predicted because baking soda is a base and vinegar is an acid and when they will start to bubble and form a gas, a sign of a chemical change. Materials: Please refer t
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  A perfect Lab Report Name: your nameDate: due dateCourse: SNC__D-0__ Partners names: Dick and JaneTeacher: Mrs. K. Sauvé  A Perfect LabPurpose: To determine the effects of mixing baking soda and vinegar. Hypothesis: It is predicted that when baking soda and vinegar are mixed together there will be achemical change. This is predicted because baking soda is a base and vinegar is an acid and whenthey will start to bubble and form a gas, a sign of a chemical change. Materials: Please refer to Nelson Science 10, page 201, Mixing acids and bases Procedure: Please refer to Nelson Science 10, page 201, Mixing acids and bases Observations:Trial NumberQualitative Observations 1 ã As soon as the baking soda and vinegar mixed theystarted to foam and bubble. ã The beaker felt a little warmer to touch ã The mixed flowed out of the beaker  ã There appeared to be less of the reactants left in thebeaker at the end2 ã Same as trial one, however, a little more baking sodawas used so the reaction was even quicker  ã More bubbles appeared and they appeared morequickly3 ã Same as trial two, however, a little less baking sodawas used so the reaction was a bit slower  ã Less bubbles appeared and they appeared moreslowly Discussion: It was observed that when baking soda and vinegar were mixed bubbles and a little bit of heatwas produced. When more or less baking soda was used the reaction went faster (with more)or slower (with less) as the speed that the bubbles appeared and the amount of bubblesproduced change. Some improvements that could be made to this lab in the future are toactually measure the mass of the reactants before mixing to be sure about how much bakingsoda was used. A graduated cylinder could have been used instead of a beaker to measure theheight of the bubbles to see how much the height changed. Different acids and bases couldhave been used to see if they have a similar reaction. A timer could have also been used tomeasure how fast the bubbles appeared. Some errors that occurred in the lab were that someof the baking soda was spilled on the desk, this is a safety issue. The amount of vinegar usedeach time was about the same, but a graduated cylinder should have been used to measure thevolume as it is more precise than a beaker and could ensure that the same volume was usedeach time. Conclusion: It was observed that when an acid, such as vinegar, and a base, such as bakingsoda are mixed together there is a chemical reaction that results in bubbles and heat beingproduced. It was also observed that when more of a reactant is used the faster the reactiongoes and vice versa.

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Nov 12, 2017
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