BASE jumping

Summary: Put on any necessary personal safety equipment, and one person from each team should collaborate with people from other teams to create the NaOH solution. The other team members should focus on setting up the buret by rising it with distilled water as well as building the titration apparatus and preparing the HCl solution. In order to prepare the NaOH solution, first take some solid NaOH and measure its mass. Then get a 250 mL volumetric flask and fill it about halfway with distilled…

Abstract The main goal of the buffer capacity experiment was to analyze how the addition of acid or base and dilution affected the measured pH. The results showed that when the buffer systems were under acidic conditions their pH values decreased and increased when exposed to a basic environment. The main goal of the ionization of the amino acid experiment was to titrate an unknown amino acid with a strong base in order to produce a titration curve. The titration curve was used to evaluate the…

1. There is not much known about phage influence on microbial communities in extreme thermal environments. What may be one of the roles these phages have in this environment? - Phages are an important components of surface hot springs, they are abundant and active components of hot springs capable of killing a significant proportion of the resident microbial populations. They play an important role as predators of hot spring microbial communities and influence carbon and nutrient cycling in…

M) * MM(CH3COOH) (0.5967M) * (65.05 g/mol) = 35.85 g/L 4) Percent Acid ((g/L)/(given density)) * 100 ((35.85 g/L)/(1005 g/L)) * 100 = 3.57% UNKNOWN ACID 1) Moles of NaOH ((Vf - Vi)/1000) * M Run #1: ((31.11 – 0.51)/1000) * 0.2116m = .006475 Run #2: ((31.35 – 0.38)/1000) * 0.2116m = .006553 2) Calc Moles of Acid because 1:1 ratio moles acid equals moles NaOH moles acid = Run 1: .006475 and Run #2: .006553 3) Molar Mass (grams used/moles acid) Run #1: (1.3160g/…

“normal” range for the human body? If not, when was the pH value outside of the normal range, and what acid/base imbalance did this pH value indicate? No, acidosis occurred at 40 seconds when the pH dropped out of “normal” range to 7.29. 6. Did the PCO2 level change during the course of this run? If so, how? Yes, the Pco2 level elevated. 7. If you observed an acid/base imbalance during this run, how would you expect the renal system to compensate for this condition? …

Part A: Background Information Acids and bases are very common in today’s society, and they can be found in most households. Acids can be found as by-products of air pollution, concrete cleaner, food flavouring and is produced by the muscle. Bases are found in most cleaning products as ammonia or sodium hydroxide, and they also treat indigestion. There are many ways that acids and bases can be defined by their chemical properties. The Bronsted-Lowry definition states that acids are proton…

Table: Summary of method validation parameter results Validation parameters Acceptance criteria Results Aminexil Minoxidil System suitability Theoretical plates should be NLT 2000 2411 11620 The tailing factor should be NMT 2.0 1.50 1.10 The RSD of five replicate injection should be NMT 2.0% 0.42 0.90 Specificity Peak of Aminexil and Minoxidil should be pure Peaks of Aminexil and Minoxidil are pure. The degradation products should be well resolved from Aminexil and Minoxidil peaks All…

Experiment 1: Standardisation of approximately 0.25 M Hydrochloric Acid Abstract The aim of the study was to standardise a solution of hydrochloric acid with an approximate concentration of 2.5 M against sodium carbonate solution. The main steps of this experiment were preparing the sodium carbonate solution, transferring the solution into a conical flask by using a pipette, adding the bromophenol blue indicator and titrating with hydrochloric acid until the first green colour appeared. The…

filter paper to remove impurities. Next, weigh 5g of coconut oil into 250ml Erlenmeyer flask. Then, add 100ml of neutralized ethanol and 2ml of phenolphthalein indicator. After that, shake until the mixture is completely dissolved. Titrate with standard base 0.1N NaOH, shake vigorously until the endpoint is reached. This is indicated by a slight pink color that persists for 30 seconds. Record the volume of the titrant used. Finally, repeat the steps more carefully in triplicate, recording each…

In this case methyl orange can be used as the indicator, pH arc being 3,1...4,4, or methyl red, pH arc being 4,4...6,2. If the pH value is bigger than the arc then the indicators will give a yellow colour to the solution, if smaller then a red colour. Total hardness is the sum of amount of Ca2+ and Mg2+ ions and is determined via complex-titration. Here is the stoichiometric point found by using different complex ions with different colours. The solution is titrated with…