Air Force Base

After thymol blue was added, the pH-buffered samples developed the colors of red, yellow, green, and blue as the pH of the solutions increased (Figure 3.1A). The pH-2 buffer turned to a light red-pink color, while pH-3 to pH-6 displayed very similar forms of rich yellow or light orange (Figure 3.1A). The neutral pH buffer solution appeared as a saffron green colored solution (Figure 3.1A). A mixture of yellow and green was apparent in the dijon color of the pH-8 buffer (Figure 3.1A). The buffer…

created to hold a constant pH balance. Blood has many components to help the body stay stable. the Body’s pH allows us to do everyday life without constantly being sick. A buffer is a mix of a weak acid and a conjugate base in a solution. They resist pH change when acids or bases are added to the solution. Blood is made up of red blood cells, white blood cells, platelets and plasma. Red blood cells help the body is carrying nutrients. Hemoglobin is the main component in blood and carries…

We ran MgCl2 through various tests to see if its properties match our UWC. the first test was to compare the solubility of UWC and MgCl2. We added 1mL of distilled water to two different beakers each and gradually added 1g of MgCl2 and 1g of our UWC to each beaker. Approximately after 15 minutes, both solids dissolved in the water and MgCl2 passed this test. The second experiment was the halide test to determine if there are any Cl- ions in both solutions. We added 1 mL of 6M HNO3 and 1mL of…

Procedure: To begin this experiment all of the equipment was collected. The materials used in this experiment were a small plastic weighing dish, oxalic acid, a 250 mL Erlenmeyer flask, distilled water, a buret, NaOH solution, a 150 mL beaker, funnel, and phenolphthalein indicator. Before the experiment began the buret was cleaned with distilled water, a buret brush, and dish soap. The buret was completely washed out in order to not cause any faults in the results of the experiment. Once the…

Buffer is made up of weak acid and its conjugate base. The pH of a buffer is determined by the ratio of unprotonated and protonated species, as described by the Henderson-Hasselbalch Equation: Since buffer in its buffering region contains both unprotonated and protonated species that can accept and donate protons, respectively, it resists sudden change in concentration of protons accompanying with the addition of certain amount of strong acid or base depending on the buffer capacity.…

The number of moles of hydrochloric acid neutralizes for the three trials (2,4,5) were calculated using stoichiometry. It was calculated for trial 2 by convert 4.88 mL NaOH to L by divide by 1000 mL. Then, to get to mol of NaOH the molarity of NaOH was multiplied by 0.00488. Then to get from NaOH to HCl, the mole ratio 2 HCl to 1 mol NaOH was multiplied by 0.00122. To get the amount of HCl per beaker, 100 mL of HCl was divided by 1000 mL to get 0.1 L. Then, the liters were converted to moles by…

CONCLUSIONS: The purpose of this experiment was to find the concentration of the unknown base (NaOH) through a titration. In the experiment, it took 0.95 mL of NaOH with a concentration of 0.53 moles to neutralize 5.0 mL of a 0.100 M of HCl. In the expected result, the concentration of the NaOH was 0.50 moles. The percent error for the lab was only 6%, which means the lab had a fairly high accuracy. Differences between the expected results and the actual result would be caused by the sources of…

Buret was rinsed with water and NaOH, and followed by filling with NaOH solution made in the first week of lab. An acid of unknown concentration was prepared by the instructor and given for analysis. 25.00 mL of the acid was transferred into an Erlenmeyer flask using a volumetric pipette and 2-3 drops of phenolphthalein were added. The resulting solution was titrated with NaOH to achieve the faint pink endpoint and [unknown] was calculated according to the volume of NaOH used. The purpose of…

He started out by being a general purpose vehicle mechanic. He was responsible for inspecting vehicle repairs on the base, and he made sure that every vehicle was working properly. It was his very first job on the base, where he started his military career. He was later promoted to a heavy mobile equipment mechanic. He had to repair and inspect many important vehicles, and he had to pay very close attention to every…

Sheppard Air Force Base, Texas. Falling under the Thomas N. Barnes Center for Enlisted Education, he provides schoolhouse vision and ensures the most professional in-resident Intermediate Leadership Experience training for over 900 total force enlisted members. Additionally, he oversees a faculty of 21 Airmen in validating and delivering 25 academic days of education for the Air Force’s mid-level of enlisted Professional Military Education. His keen oversight is essential to providing the Air…