Base pair

substance that turns litmus paper red, neutralizes alkalis, and dissolves metals. Bases are chemical substances that change litmus paper blue, react with acids to form salts and encourage certain chemical reactions. Acids produce H+ ions in aqueous solutions while bases accept H+ ions as well as produce OH- ions in aqueous solutions. In other words, acids are viewed as electron pair acceptors and bases as electron pair donors. Every liquid has either acidic or basic properties. A liquid that is an

It consists of an acid-base pair between dihydrogen phosphate and hydrogen phosphate. These are weak acids and bases, which means they only partially dissociate in water, putting them in an equilibrium state. This allows the buffer to shift back and forth, acting as either a source or a sink for protons. The phosphate buffer

Only a few trials were needed. The used buffer solution was thrown down the sink and then a new 25 mL of the prepared buffer was poured into a clean 100 mL beaker. The same process was repeated like for the HCl, but this time using the strong base NaOH. 1 mL of 0.5 M NaOH solution was added to the beaker with the 25 mL of the buffer and mixed. The new pH was recorded. Again, 1 mL of 0.5 M NaOH continued being added and the pH was recorded until it had risen by 0.5 units. This time more trials

chloride solution to the experimental Petri dish. Results were observed and recorded. Results In station 1 when the acid was added to the experimental Petri dish the bioluminescence of the powdered firefly lantern started to dim and once the base was added the lantern began to brighten up again. The controlled Petri dish remained bright during all four of the experiments. The results are as shown in Table 1. In station 2 after the experimental Petri dish was taken out of the fridge and

Introduction 1.1 Purpose of the Report The purpose of this investigation is to research aspects of water quality such as guidelines for water quality, water quality parameters, contaminants that effect water quality, water quality tests and catchment area influences. Samples from the Dee River, from above and below the former Mount Morgan mine site, will be tested and compared in terms of pH level, conductivity and water hardness. The links that exist between pH levels and water hardness will also

Introduction: Heartburn is generally caused by imbalanced gastric juices/acids. Antacids are a type of medication, which corrects the pH balance in your stomach. A pH scale is a scale that ranges from 0-14, with 0 being the most acidic, 7 being neutral, and 14 being most basic. There are many types of antacids, such as sodium bicarbonate (contains baking soda), calcium carbonate, there is also aluminum and magnesium based antacids. A combination of aluminum and magnesium based antacids also

The peak at 172.75 ppm indicates the carboxylic acid carbon. The shift from 127.6 ppm- 141.55 ppm represent the aromatic carbon peaks. There were 7 total aromatic hydrogen peaks visible. This is because 4 pairs of these carbons were chemically equivalent and only showed one peak. The other 3 carbons were non-equivalent and each showed their own peak to yield a total of 7. The further downfield an aromatic peak was observed, the closer it was to the carboxylic

value depending on various macro-economic factors. Its volume amounts to the value of New York Stock Exchange, with a daily average of $20 billion. Forex trading is done in currency pairs by which one currency is bought or sold for another in anticipation of gain or loss in value against another. An example of a currency pair is shown using notation- EUR/USD or USD/JPY. Major players in Forex market include inter-world investment and commercial banks, money portfolio managers, money brokers, large corporations

Cable (10Base2): Thinnet coaxial cable is connected using special connectors and requires to be terminated at each end using a 50ohm resistor. 10Base2 stands for:  Data transmission rate of 10Mbps, example: 10  Uses baseband transmission, example: Base  Used in Ethernet networks it has a maximum cable length of 185 metres, example: the 2 for approximately 200 metres Thinnet cables use a connector known as a BNC connector to make the connections between the computers and the cables. Thicknet Cable

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