Explain how Avogadro’s number and atomic massrelate to “the mole.”

Introduction(20points)This section should be at least 2-3full paragraphs, written like an essay. The following are suggested topics, but more topics can be discussed in the introduction.•Required: state the objective(s) of this lab. •Discuss the unit “mole” and explain why this unit is used in chemistry. •Explain how Avogadro’s number and atomic massrelate to “the mole.” •What is molar mass? •Why is the molar mass of a substance important to understand in chemistry? •Be careful not to explain the procedure, data,or results of this lab. •Write a hypothesis: Explain how the theoretical molar mass of a substance can be calculated. At least 2 sources mustbe usedas in-text citations to support scientific information presented in the introduction. Sources must be listed in the “Bibliography” section. Materials(5 points) Listall equipment and chemicals that were used to perform this lab. This does not need to be written in complete sentences.Materials such as pencil, paper, etc. are assumed materials and shouldnot be included. Safety precautions(5 points)Explain all safety precautions taken in this laboratory. Be specific. If any safety precautions were not needed, explain why. Procedures(5points)This sectioncan be written as a list of sequential steps or as a paragraph that summarizes the procedure. “Get into lab groups” or “Gather materials” should not be included. Text should bewritten in 3rdpersonpassive voice (do not use pronouns)and in past tense. Not acceptable: “I poured 15 mL of water into the test tube.” Acceptable: “15 mL of water was poured into the test tube.”
Conclusion(25points)This section should be at least 2-3paragraphs, like an essay. •Explain how the hypothesis was supported or not supported by identifying the data that supports this statement. Do not simply write, “The hypothesis was supported.” Never state that the hypothesis was “proven.”•Identifyany errors or mistakes that occurred during the lab. Explain how these errors/mistakes affect the accuracy and/or precision of the data. These errors should be things that could not have been avoided and are not a result of human error. oFor example, misreading the balance as 23.0 grams instead of 32.0 grams is a human error. This kind of error should be corrected immediately. oFor example, a graduated cylinder shows measurements up to 0.1 milliliters, therefore it is only possible to estimate measurements up to 0.05 milliliters. It is not possible to obtain more precise measurements to the 0.001 or 0.0001 decimal place because the equipment is not made for that level of precision. This would be an error outside your control. oFor example, if a measurement was taken that depends on the reaction time of a human (reading a stopwatch), then this cannot be avoided. There is some level of uncertainty because the time it takes for someone to stop the clock is automatically added in the measurement.This is an error outside your control. •Identify errors or mistakes that were corrected during the lab. Explain how these were corrected. •Identify at least 2 ways the lab procedure could be improved to get more accurate and/or precise data. An improvement such as doing the lab with a “better” lab partner is not acceptable. Focus on ways to improve the lab procedure such as increasing the number of trials done to get an average measurement. For each improvement, explain why it makes the lab betterand makes the data more accurate/precise.•***Any information in this section that was taken from an outsidesource must be cited and included in the bibliography. Bibliography(7points)•At least 2 credible sources are listed in MLA or APA format, alphabetical order. Sources mustbeused as an in-text citationsin the introduction section. •Acceptable sources: oClassroom textbook oSource from Galileo or Google ScholaroAcademic and/or scholarly journal andpeer-reviewed articles
oGenerally accepted science websites: ▪https://www.science.org/▪https://www.nationalacademies.org/▪https://www.sciencenews.org/▪https://www.nytimes.com/section/science▪https://www.pbs.org/wgbh/nova/▪http://www.plos.org/▪http://www.science.gov/▪http://undsci.berkeley.edu/▪http://www.ucsusa.org/•Internet blogs, publicnews sources, Wikipedia, Khanacademy.org, homeworkhelp.com, etc.are not acceptable. •List all sources that were used to help you write this report. •If no sources are cited, the report will be considered plagiarized and will be graded as 0. Other requirements for this lab report: •Readable font (Times New Roman, Calibri, Cambria, Arial, etc.)•Point size should be 10-12 point. •Margins on side paper should be 1.00 –1.25 inches. •Check for grammar, spelling, and punctuation mistakes before submitting. •Do not write “fluff.” Lab reports should be objective documents and express the main point(s) quickly. •Do not use using pronouns such as I, you, or me. Instead, write in 3rdperson, passive voice.

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