Rate of reaction experiment

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Science

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Rate of reaction experiment worksheet.


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Design Your own Experiment: Factors that Affect the Rate of a Reaction Introduction: An antacid tablet contains citric acid and sodium bicarbonate (baking soda). When you drop the tablet in liquid, the acid and the baking soda react – this produces the fizz. 3 HCO3-1(aq) + H3C6H5 O7 (aq) bicarbonate ion citric acid  3 CO2 (g) + 3 H2O + C6H5O7-3(aq) citrate ion Several factors affect the rate of a reaction. In this investigation, you will design experiments to test three factors that may affect the rate of the reaction that takes place when an antacid tablet dissolves in a liquid. Possible Materials: jars, antacid tablets, water, ice, timing device, thermometer, vinegar (an acetic acid solution), salt, measuring spoons, measuring cups Procedure: 1. Choose three factors to investigate. 2. Form hypotheses about how the factors will affect the rate of the reaction. 3. List the steps you will follow to test your hypotheses. Consult with your Learning Coach before performing your experiments. 4. Carry out your experiments. Be sure to adhere to lab safety rules as you perform the experiments. 5. Record your observations. 6. Draw conclusions from your experiments. Describe the relationships between the three factors you tested and the rate of the reaction. Explain whether or not your results support your hypotheses. Note any sources of errors. 7. Complete a formal laboratory report which includes a heading, materials, hypotheses, procedures, data, and conclusions. Science Lab Grading Rubric – Design Your Own Lab Heading Exemplary (3 pts) n/a Materials Hypothesis/ Introduction Procedures/ Plan Data Note: Data will not always include tables, diagrams, or graphs Conclusions Developing (1 pt) Missing one component Unsatisfactory (0 pts) Missing two or more components n/a Satisfactory (2 pts) Contains lab title, student name, date, course, unit, lesson All materials listed Most materials listed Provides a clear and thorough explanation of purpose Provides a clear purpose with some explanation Exemplary (6 pts) Clear step-by-step description of experimental procedures Includes all formulas/calculations used to analyze data; records all observations; includes tables/ diagrams/graphs, as necessary Uses data effectively as evidence to support conclusions/ answers Satisfactory (4 pts) Step-by-step description that misses not more than one key detail Includes most formulas/calculations used to analyze data; records observations; includes tables/ diagrams/graphs, as necessary Uses data somewhat effectively to support conclusions /answers Provides a purpose that is clear but provides little or no explanation Developing (2 pt) Step-by-step description that misses not more than two key details Includes some formulas/calculations used to analyze data; records some observations; includes some diagrams/tables /graphs, as necessary Uses data to support some conclusions/ answers Some or few materials listed Purpose is unclear Answers most assigned questions Answers some assigned questions Answers few assigned questions Uses scientific terms, as necessary Usually uses scientific terms, as necessary Sometimes uses scientific terms, as necessary Does not use scientific terms, as necessary Clearly explains results Clearly explains results Somewhat clearly explains results Always uses proper grammar Usually uses proper grammar Sometimes uses proper grammar Answers all assigned questions Heading Materials Hypothesis/Introduction Procedures Data Conclusions /2 /2 /3 /6 /6 /6 Total score /25 ©2007 Connections Academy, LLC. All Rights Reserved. Unsatisfactory (0 pts) Description lacks more than two key details Includes few or no formulas/ calculations used to analyze data; records few or no observations; includes no tables/ diagrams/graphs Does not use data to support conclusions /answers Does not clearly explain results Sometimes uses proper grammar
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Explanation & Answer

attached is the completed assignment

A lab report

A lab Report the effect of temperature change on the rate of chemical reactions
Student Name
Due Date
Instructor’s name:
Faculty Name
Course tittle

1

A lab report

Tittle: A lab report on the effect of temperature change on the rate of chemical reactions
Aim
The aim of this experiment was to investigate how a change in temperature affects the rate of
dissolution of antacid tablet.
Introduction
This experiment uses an antacid tablet. It contains sodium carbonate and citric acid...


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