i have a lab to do on spectrophotometry and im supposed to graph all these numbers and i really have no clue what to do. can anyone help me???

What do you have? %T and concentration, absorbance and concentration? something different?

i have %composition and absorbance.

On your graph paper, plot A on the y axis and % composition on the x axis.

its that all??

the numbers vary a lot. like some of the numbers are .004 and some are 1999. how would you graph that big of a difference??

and it asks questions like at what wavelength was the absorbance the greatest but for the color red i recorded the absorbance to be 1999 at 6 different wavelengths. so i don't know what to do.

In your response to mine, you didn't say anything about changing wavelength. Perhaps you should describe what you did in the experiment. Also, a question such as "like some of the numbers are .004 and some are 1999." It doesn't help us if you don't identify what the numbers are and how you produced them.

Of course! I can help you understand how to graph the numbers for your spectrophotometry lab. Here's a step-by-step guide:

1. Understand the data: Take a closer look at the numbers you have. What are they representing? Are they absorbance values at different wavelengths, or perhaps concentration values at different time points? Understanding the nature of the data is important for proper graphing.

2. Determine the x-axis and y-axis: Identify which variable you want to plot on the x-axis (horizontal) and the y-axis (vertical). This decision depends on the purpose of your graph and the relationships you are trying to visualize.

3. Choose the appropriate graph type: The choice of graph will again depend on the nature of your data. Some common options include line graphs, scatter plots, bar graphs, or histograms. Ensure that the chosen graph type effectively represents your data and displays any trends or patterns accurately.

4. Prepare your data: Organize your data in a table format, providing the necessary information for graphing. Assign the appropriate values to the x-axis and y-axis columns.

5. Plot the data points: Using the prepared data, plot the individual data points on the graph. Each data point should have an x-coordinate (based on the x-axis variable) and a y-coordinate (based on the y-axis variable).

6. Connect the dots (if necessary): Depending on your data and graph type, you may need to connect the data points with lines to show a trend or relationship. This step applies to line graphs, for instance.

7. Add labels and titles: Include clear labels for both the x and y-axes, describing the variables being plotted. Additionally, include a title for the graph that reflects the purpose of your experiment or the main finding you want to communicate.

8. Adjust display options: Customize your graph, if needed. You can modify the scale of the axes, adjust the range of values displayed, or add gridlines for easier interpretation. Various software tools, such as Microsoft Excel or Google Sheets, offer options to alter the appearance of your graph.

Remember, graphing is a visual representation of your data, which helps to analyze patterns, trends, and relationships more easily.