In a chemistry experiment, what be some possible errors with regards to inaacuracy of data if you will compare a virtual simulation to a real laboratory setting
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In a chemistry experiment, what be some possible errors with regards to inaacuracy of data if you will compare a virtual simulation to a real laboratory setting.
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- I am slightly confused on how to do this. I think I figured it out but I just want to compare data and take notes on what I have done incorrectly.Describe calibration (it's principles) as used in Analytical Chemistry.What materials will the teacher and the students need to complete a lesson on mixing substances in a 5th grade classroom based on the below standard and learning objective? Standard Conduct an investigation to determine whether the mixing of two or more substances results in new substances. Learning Objective Given a variety of substances and safety equipment in a classroom setting, students will be able to conduct an experiment to mix two or more substances and observe the results. They will be able to correctly identify whether a new substance has been formed as a result of the mixing, based on observable changes such as color change, formation of a precipitate, or change in temperature, with at least 80% accuracy.
- PAPER CROMATOGRAPHY • Define chromatography • Demonstrate an understanding of the process of chromatography • Describe the steps involved in a chromatography investigation Explanation Coloured inks are often made up of several different inks. Each colour of ink will get carried a different distance by the water, allowing you to see all of the different inks. Try this with different colours to see what actually goes into a colour. This technique is called chromatography and can be used in chemistry to find out what is in an unknown mixture. II. Materials .Felt tip pens (non-washable) . Kitchen roll .A bowl or cup . Water • Scissors III. Health and safety • Make sure that you thoroughly clean any equipment after the experiment before using for food IV. Procedure Method 1 1. Take a sheet of kitchen roll and draw a simple picture with a non-washable felt tip pen. 2. Place the sheet over an empty bowl. This is to keep the paper from getting too wet. 3. Carefully add a few drops of water…Explain your rationale for using the summative assessment (below) from the lesson plan on mixing substances in a 5th-grade classroom based on the below standard and learning objective, including how it aligns with the learning objective. Summative Assessment Summative: Components of the Lab Report Purpose: The student should clearly state the purpose of the experiment, which is to determine whether the mixing of two or more substances results in new substances. Procedure: The student should describe the steps they took to conduct the experiment. This includes the substances they chose to mix and the safety equipment they used. Observations: The student should record any observable changes that occurred when the substances were mixed. This could include a color change, the formation of a precipitate, or a change in temperature. Conclusion: The student should state whether a new substance was formed based on their observations. They should also reflect on their accuracy in…Discuss the language demands included in the lesson on mixing substances in a 5th-grade classroom by Identifying key vocabulary terms students must know in order to master the learning objectives for the lesson based on the below standard and learning objective. Standard Conduct an investigation to determine whether the mixing of two or more substances results in new substances. Learning Objective Given a variety of substances and safety equipment in a classroom setting, students will be able to conduct an experiment to mix two or more substances and observe the results. They will be able to correctly identify whether a new substance has been formed as a result of the mixing, based on observable changes such as color change, formation of a precipitate, or change in temperature, with at least 80% accuracy.
- Use the References to access important values if needed for this question. You have the following data points which belong to a function of the form y = ae", where b can be positive or negative. 4.13 3.26 2.57 0.100 0.200 0.300 You wish to determine the value of the constant, 6, and to do so you will construct a linear plot. What will you plot against what? y-axis label: Iny - x-axis label: x From the values of a and y in the table above, calculate the values of the three corresponding data points. Click on the graph below, and use the "Freeform Curves" tool to plot the data. Line segments will automatically connect the points. Enter Solution What is the numerical value of the constant, b? b = Submit Answer Retry Entire Group No more group attempts remainYou try your best to put your samples in the middle of the balance pan when you try to weigh them every time. However, you know that it is impossible to place your samples in the same location each time. This discrepancy introduces error to your measurements. systematic randomWrite a informative essay about separation of mixtures in Chemistry.
- Calcium hydroxide reacts with sulphuric acid and gives calcium sulphate precipitate For rapid separation of precipitate what apparatus is used and describe the steps involved in the filtration.Which of the following statements is a feature of scaled particle theory? a) The work required to insert a solute into a solvent depends on the solute's volume only b) The work required to insert a solute into a solvent depends on the solute's accessible surface area only c) High molecular-weight compounds cross biological membranes more easily than low- molecular weight ones d) A large particle has the same surface area-to-volume ratio as a small particle e) Particles in solution pay an energetic penalty to create a cavity in the solventA study is being performed to see if there is a correlation between the concentration of chromium in the blood and a suspected disease. Blood samples from a group of volunteers with history of the disease are analyzed and compared with the results from the healthy control subjects. From the following results (Table 1), determine whether the differences between the two groups can be ascribed as chance or whether they are real at 95% confident level.