Chemistry lab report example high school. How to Write the Perfect Chemistry Lab Report: A Definitive Guide 2022-10-28
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A chemistry lab report is a document that describes the details of a laboratory experiment that was conducted to test a hypothesis or explore a scientific concept. It is typically written for a high school chemistry course, and includes a variety of components that are used to convey the results of the experiment and the conclusions that were drawn from it. Here is an example of a chemistry lab report that was completed by a high school student:
Title: Determining the Molar Mass of a Compound
Abstract: In this experiment, we aimed to determine the molar mass of a compound by measuring its mass and volume, and comparing the results to the ideal gas law. Our results showed that the molar mass of the compound was within a reasonable range of the expected value, indicating that our method was successful.
Introduction: The molar mass of a compound is a measure of its atomic weight, and it is an important property that is used to predict a variety of chemical reactions. In this experiment, we used the ideal gas law to calculate the molar mass of a compound, which states that the pressure, volume, and temperature of a gas are inversely proportional to each other. By measuring the mass and volume of the compound at a given temperature and pressure, we were able to calculate its molar mass.
Materials and Methods: To perform this experiment, we used the following materials:
50 mL graduated cylinder
50 mL of the compound
To begin, we weighed the 50 mL graduated cylinder on the balance to determine its mass. We then added 50 mL of the compound to the cylinder and weighed it again to determine the mass of the compound. Next, we used the thermometer to measure the temperature of the compound, and recorded the value. Finally, we used the ideal gas law to calculate the molar mass of the compound, using the following equation:
M = (PV)/(RT)
Where M is the molar mass, P is the pressure, V is the volume, R is the gas constant, and T is the temperature.
Results: Our results are shown in the table below:
Mass of graduated cylinder (g)
Mass of compound (g)
Molar mass (g/mol)
Conclusion: In this experiment, we successfully determined the molar mass of a compound using the ideal gas law. Our results showed that the molar mass of the compound was 30.8 g/mol, which is within a reasonable range of the expected value. This indicates that our method was accurate and reliable.
Overall, a chemistry lab report is a useful tool for documenting and interpreting the results of a laboratory experiment. It allows students to present their findings in a clear and organized manner, and to draw conclusions based on their observations. By following the format and guidelines outlined in this example, high school students can effectively communicate their scientific findings and improve their understanding of chemistry.
Format Of Chemistry Lab Report [+Examples & Outline]
Give a science reason. Be sure to include all relevant information, such as author names, publication dates, and URLs. Do all the measurements fit in the Data Table grid? Click image to download the pdf of a sample science report. You might want to read :. State the theory or hypothesis that you are attempting to test, and add information about previous scientific studies or experiments that are relevant to your theory.
If you are expecting a perfect result from a perfect laboratory experiment from a perfect human, you should probably do science on some other planet. The synthesis was carried out using two different methods, and the melting points of the products were measured. Once you follow the 23 steps to make your first good report, however, you can use it as a lab report template in the future. Although your students might be a teenager, adding fun to the process will excite them more. It should consist of no more than a couple of paragraphs and end with at least one hypothesis. Procedure: Give a very short summary of the steps taken to collect data. Afterwards the diameter of the syringe was measured with a ruler.
Again, this specific paragraph has to, at bare minimum, sound scientific. Your conclusion makes a brief summary. Also read: Colored Flames Colored flames will help us to analyze if there are any specific elements by its spectrum. You might say that Dr Scott was overwhelmed by sarcasm, cynicism, anxiety, fear, disgust, sadness, annoyance, anger, rage, and temper tantrums regarding teaching about lab reports. To further investigate this phenomenon, more substances could be heated to compare their boiling points to those of vinegar and apple juice to make more inferences regarding intermolecular forces. You should also explain why you chose these particular methods and how they helped you answer your hypothesis.
First, yes you can. Proofread that rough draft, then proofread it again… and once more again… before transcribing it into your report. Extract conclusions from your data. Include any variables and controls. Learning to write a lab report is a simple process, and once you get the hang of it, it will become second nature.
Examples of everyday reports include bills, invoices, taxes, food labels, blood tests, and report cards. The key is to make the material acceptable and making it easier for student to understand without changing the essential points. Scan it into a pdf. Solve any equations brought up in the experiment. Formal Lab Report Format When asked to conduct research, most high school students automatically go the internet to get general information on the topic.
If the law of mass conservation is true, then the reaction between vinegar and sodium hydroxide would measure the same mass as the initial reactants. Different classes may vary the requirements for the contents of the report, but most will follow the basic pattern below. List your materials in the "Materials" section. You need to work out 4 paragraphs as rough and perhaps second drafts before copying it over to your report. Apple juice had the higher boiling point at 160 , compared to vinegar at 188 ; therefore, it has stronger °F °F intermolecular forces between its molecules. Do not discuss human error because this is always present…after all, we are all human! If the same calculation is repeated with different sets of data, you may show the steps of the calculation with the first set of data only.
Free Chemistry Lab Reports Samples and Examples List
Just remember to always be careful in doing any kinds of experiments. Introduction The purpose of this experiment was to analyze the relationship between the pressure and the volume of an air sample at constant temperature. Master the lab report format, use our sample lab report as a guide, and produce a lab report template for your science report. In this section of your lab, you talk about the significance of your results. Side Calculation of Percent Error Got a result? It should consist of 3-4 sentences, not many more. Then just restate the main result s in a sentence or three. How do you write a lab report for organic chemistry? What could have been done better? Remember to use significant digits and appropriate units! Your Introduction stated a theory.
Format, header, outline, type or topics? Give it a good file name. Conclusion: Answer the purpose in this section. Explain your choice and how your choice helps to conduct a safe and accurate study. Alternatively, materials can be included as part of the procedure. This is the type of higher level writing that teachers like for A+ grades. If the purpose is to observe physical and chemical changes, give examples of physical and chemical changes seen in the lab. The answers do not have to be in complete sentences as long as you have included the question in this section.