Experiment 6: Weigh approximately 0.5 g of baking soda (NaHCO3) and transfer it to a clean and dry 10 ml test tube. • Add 3 mL of 0.1 Macetic acid solution (CH3COOH) to the test tube and gently swirl the contents E3 NB Q7 Homework Answered Fill in the Blanks Type your answers in all of the blanks and submit X X Ω - The reactants in this experimentare Acetic Acid Х and You are incorrect Baking Soda Х You are incorrect Please write your answers using the full name for each chemical. Do NOT write your answers using
Experiment 7: • Measure 4 mL of 1 M sodium hydroxide (NaOH) solution and transfer it to a clean and dry 10 ml test tube. • Add 2 mL of 1 M sulfuric acid (H2SO4) solution to the test tube and gently swirl the contents. E3 NB Q8 Homework Answered ♡ Fill in the Blanks Type your answers in all of the blanks and submit X. X 12- Acetic Acid The reactants in this experimentare and х You are incorrect Baking Soda х You are incorrect reucing the full name for each chemical. Do NOT write your answers using
Experiment 8: • Remove i piece of solid zinc metal from the stock container and transfer it to a clean and dry 10 ml test tube. • Add 3 mL of 1 M hydrochloric acid (HCl) solution to the test tube and gently swirl the contents E3 NB Q9 Homework Answered Fill in the Blanks Type your answers in all of the blanks and submit X. X 22 - X and The reactants in this experimentare aqueous silver nitrate X You are incorrect Write your response here X You are incorrect Please write your answers using the full name for each chemical. Do NOT write your answers using formulas
Experiment 9: • Weigh approximately 3 g of calcium chloride (CaCly) and transfer it to a clean and dry 10 mL test tube. • Add 5 mL of water (H20) to the test tube and gently swirl the contents. E3 NB Q10 Homework - Answered Fill in the Blanks Type your answers in all of the blanks and submit X. X* 12- Acetic Acid The reactants in this experimentare and Х You are incorrect Baking Soda Х You are incorrect Please write your answers using the full name for each chemical. Do NOT write your answers using formulas.
E6: Pre-Lab Skills Homework Due in a day 0:2 answered Graphing is one of the most clear and condensed ways that scientists display their data. This is especially true when working with very large data sets, where graphs allow us to quickly communicate large amounts of data in a single snapshot When your data set becomes very large it also becomes important to think about making your graphs with a spreadsheet instead of making them by hand. In today's world we are so tech savvy that we tend to use our computers and tablets for everything. as we should! So let's learns how to make graphs using a spreadsheet. Not all spreadsheets are the same, but Microsoft excel is a very common program and is available for most students as part of Microsoft 365 using their academic credentials, (https://www.cuny.edu/about/administrati ... technology services/microsoft-office-365-for-education/ Below we will walk you through the steps required to make a graph using an excel spreadsheet. 1. Open your excel program and select New Workbook You will see a spreadsheet like the one below. It contains a grid, but there is no data in the cells. TEC Home Page Layout Tom Acco OS C - 1 AX A BIU 要日 X 1 3 33 Fullscreen
Let's think about how to enter data into this spreadsheet. We will start by looking at the data table below. This table gives us a series of elements, their corresponding atomic numbers and their corresponding melting point values in two different sets of units, Celsius and Kelvin. You will notice that the data in the table is organized alphabetically by element. This may not be the best way to enter it into our spreadsheet. In fact, it is important to enter data into your spreadsheet with your ultimate in mind. In this case we are going to make a graph so we need to think about what variables we want to plot. Element Melting point Atomic number (Celsius) Melting point (Kelvin) Astatine 85 302 575 | Bromine 35 -7 267 Chlorine 17 -101 172 Flourine ση 9 -220 53 53 114 387 lodine Tennessine 117 522.73 795.73 We want to plot melting point (in degrees Celsius) versus Atomic number so this means our melting point data will be plotted on the y axis and our atomic number data will be plotted on the x axis. When we enter our data into the spreadsheet we must consider this. When you highlight a selection of doto to plot the program will always read your first column as your x axis data and your subsequent columns as your y oxis dato. So in this case we want to make sure that Pullse we put our atomic number data to the left of the melting point data. While it is not
We are now ready to think about plotting the data, but before we do- let's look at the graphing parameters. Click on the "Insert" tab on your spreadsheet and find the panel that shows you the "Chart" options. Here you can see the types of graphs that you can create. You will see that you have plenty of options, including column (or bar) graphs, line graphs, pie graphs, and what we call a scatter plot. Scientists usually create scatter plots because they are so very versatile. When you click on the "Scatter" plot option you will see some sub-plots. Here we usually choose the first plot - the one that has no lines connecting the data points. When you are ready to actually make your plot highlight the data you want to plot In this example we are plotting melting point in Celsius on the y axis and atomic number on the x axis so we highlight the 2 columns that contain this data. Notice that the atomic number data is to the left of the melting point data. It is important to note that that we also call the data on the x-axis (the bottom, horizontal one) the "independent” variable and the data on the y-axis (the left side, vertical one) the "dependent” variable. Payout Data 司。 To BOM OM Chart Fullscreen
Next we want to table our chart axes and add a trend line. We do this by using the "Chart elements feature, which allows us to label the axes (x and y), format the axes (change the size of the grid or change the scale for example), add a linear trendline (a line that connects your data points through the best possible fit of the y = mx +b equation) and display the equation for the trendline on your chart. Click on the "+" icon to open this menu RE Me CA 10 AN A RE BIB On Atomics Melting Point 9 Melting Point 10 -220 33 122 hent Fuori Chaine Bronne lodine As Teenuse Men Pont Mom 35 114 302 53.2 10 11 O 12 14 15 IT 1 Below we choose to add the axis titles and a trend line to our graph. The trend line adds a line that connects your dots in a linear fashion to the best possible fit. This line appears automatically on your graph and is an important feature that scientists use ALL the time.
E6 Skills Q2 Homework Please upload your graph here. Remember that you need to upload an image file so after you have created your graph in excel take a screenshot and save your file as a PDF, PNG OP JPEG file. This is the file you will upload. Browse your computer or drag and drop file here Max file size: 50MB Accepted file types: PDF, JPG, JPEG, PNG 0/20 File Limit Submit Unanswered
Experiment 6: Weigh approximately 0.5 g of baking soda (NaHCO3) and transfer it to a clean and dry 10 ml test tube. • Ad
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Experiment 6: Weigh approximately 0.5 g of baking soda (NaHCO3) and transfer it to a clean and dry 10 ml test tube. • Ad
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