AP Chemistry Kinetics Lab Abstract: The purpose of this lab is to learn how to write law expressions, determine orders by graphs, and calculate rate constants. By determining the number of drops of sodium hypochlorite necessary to make a diluted food dye change to colorless in less than three minutes helps calculate the absorbance which can then be analyzed to find the pseudo rate constant and eventually leading to the rate constant and the rate law.
The results show that the m and n are both 1st order which makes the overall order of the blue dye 2nd order. Results: In this experiment, rate laws and graphs help calculate the oxidation of food dyes by sodium hypochlorite. During the experiment the linear relationship between absorbance and concentration is called the Beer-Lambert Law. This law states that A”A1 XBXC where A is the measured absorbance, A1 is a wavelength dependent absorptivity coefficient, B is the path length, and C is the analyze concentration.
The equimolar sodium chloride solution is used to dilute the sodium hypochlorite in trial 2 because these are acid base reactions, therefore distilled water would not be helpful. After graphing the plot absorbance vs. time, as shown in the graphs, whichever of three graphs produces a straight line represents the order. If absorbance vs. time is a straight line, the order is O and k’ is the negative of the slope. If In (absorbance) vs. ime is a straight line, the order is 1 and k’ is the negative f the slope. If 1/ (absorbance) vs. time is a straight line, the order is 2 and k’ is the same as the slope.
Quantitative research peer-reviewed journal article .
Quantitative research peer-reviewed journal article ..
A. Evaluate a primary quantitative research peer-reviewed journal article (suggested length of 3–5 pages) that has healthcare implications by doing the following: 1. Identify how the researcher addresses the five following areas of the selected journal article, using the attached “Evidence Table”: • background or introduction • review of the literature • discussion of methodology • data analysis • researcher’s conclusion 2. Critique whether the evidence presented in each section of the journal article supports the researcher’s conclusion. Note: The attached “Evidence Table” may be used to address A1. A2-A5 may be addressed on the same page under the table. Note: Try to think about how the first four sections in the A1 table support the fifth section, the conclusion. 3. Explain the protection of human subjects and cultural considerations of the journal article. 4. Identify strengths and limitations of the study. 5. Describe how the evidence informs nursing practice.
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