The first part of the experiment was determining the resolution of the DAC in volts. Before a voltage was applied the noise was determined by measuring the DC offset, the reading of the DMM at an input of zero volts. This offset was removed from the recorded values in order to provide a more accurate reading of the resolution. These corrected values and their corresponding applied voltages can be found in Table 1 of the appendix. The lowest value recorded from the DMM was -9.968V and the highest value recorded was +9.968V making the range of the DMM about 19.94±0.01V. Using the equation for calculating resolution, the resolution was calculated for values of N from 10 to 18 in increments of 2 (recorded in Table 2).…
Initial Goals: My initial goals for the program was to take in an equation like 5*(4/3+2^(3-1)) and return the answer to it (26.666667 in this case). I intended it to work with simple arithmetic (multiplication, division, addition, subtraction, exponents, and parentheses). My initial brainstorming resulted in an iterative action. The program would follow the order of operations and begin with the contents of innermost parentheses and replace that portion of the input with the answer before moving one step out into what is now the innermost parentheses.…
Interpret the data displayed in the SPSS output graphs you created. 90 children obtained trauma- informed counseling services. Children age 10 is the highest (mode) and the average (mean) age group to obtain service. The standard deviant is 3.3.…
An error that is out of our control was the calibration of the pH meter because it was calibrated at two different pH levels before the lab and if they calibrations were off, then the readings for the entire lab were…
Unfortunately, the main cause/s of the errors are unknown but, it is believed to have transpired due to the groups mistake of measuring out both pH 3 and 5…
Antacids are a class of medicine which assist to balance the acidity/ pH balance in your stomach. The pH system is a scale which measures how acidic a substance is or how basic a substance is or if a substance is neutralized. Antacids have the ability to give relief for heartburn, indigestion or symptoms of acid reflux. There are many types of antacids such as calcium, aluminum and magnesium. They’re many ways to consume antacids such as liquids, tablets and chewable tablets.…
Data Calculated from Experiment Solid-Liquid Weight (g) Solid-Liquid % Recovery Liquid-Liquid Weight (g) Liquid-Liquid % Recovery Acid 0.01 20 % 0.028 56 % Phenol 0.011 22 % 0.001…
The results of the experiment were that the product created to determine the coefficients of the coordination complex, KaFeb(ox)c ∙ dH2O. On day 1, K2C2O4 ∙ H2O and FeCl3 ∙ 6H2O were mixed together forming a green solution (Figure 1). The green solution was set aside for 45 minutes in the dark to allow crystals to form (Figure 2).…
1. What is a DNA barcode? DNA barcoding is fast, accurate method of identifying plant and animals, or products made from them. It’s a DNA sequence that uniquely identifies each species of living things by comparing them with known barcodes in large online databases.…
This resulted in a margin of error between trial #1’s experimentally obtained rate and trial #1’s predicted rate being 8.13%. The predicted rate was determined by using the corrected rate law, as well as the corrected average k constant, which is 3.76x10-5 1/sM. The formula used to find the percent error was . The overall percent error between the average predicted rate (calculated with the corrected k constants) and the experimentally obtained average rate, not just trial one’s results, was 2.4%. The percent error could have results from many sources of error. The times were all hand timed and sometimes it was difficult to tell when the iodine had completely neutralized so the times may be slightly off.…
Racheal A. Krasner Professor Garfield Beckford CHEM 1211 L 25 September 2015 Lab Report Concerning Acid-Base Titrations The purpose of this experiment was to recognize the procedures for conducting acid-base titrations. Each acid-base titration used one solution to analyze another; it also involved the use of an indicator, which denoted the endpoint of the titration. The indicator used was phenolphthalein; it produced a pink hue when the titrations reached their endpoints – between pH 8 and pH 10.…
Conclusion and evaluation: The titration should be carried out carefully while making sure the color of the neutralized solution is the same for all the trials. This can be done by keeping the first sample aside that can be used for reference of the other trials can do this. The readings should be made accurately to avoid having inaccurate results. While titrating the solution should be stirred continuously to make it mix properly with the acid. During the experiment you should make sure none of the solution sticks to the surface of the glass while being transferred, this could affect the reaction and…
1. Explain the difference between data and information. Give examples of raw data and information. “Data is raw facts, or facts that have not yet been processed to reveal their meaning to the end user” (Coronel & Morris, 2015). It is a building block.…
The learning objective of the experiment performed was to determine the pH of solutions that were given by using litmus paper and pH machine. The Experiment was kind of successful except for an issue with one of the solutions. When we tried to figure out the pH by looking at the litmus paper; we were stuck between a pH of 6 and 7. The best choice was to choose a number in between 6 and 7.…
This may have caused the measurements to be off. My ideas haven't changed because i've done this lab before. For future experience i have to look at the broader picture like “what will happen if this isn’t done right”. I now have an understanding on accuracy and precision on how they relate to percent error and average deviation.…