The effects of initial Ag (I) concentration‚ contact time‚ solution pH and coexisting ions on the adsorption capacity of Ag (I) were systematically investigated. Moreover‚ the chelating resin could selectively adsorb more Ag (I) ions than other heavy metal ions including: Cu (II)‚ Zn (II)‚ Ni (II)‚ Pb (II) and Cr (III)
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to a rapid decline in the numbers of the mangroves in any environment. A relatively simple example of this would be to project the effects of having a sudden decrease in the pH levels of the water and soil surrounding the mangroves. This could easily occur due to pollution and improper disposal of waste products. At lower pH levels (more acidic environments)‚ the mangroves will begin to be poisoned. Aside from the obvious corrosive properties of having an acidic environment‚ elements such as manganese
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Cyclic voltammograms for 50 moldm-3 catechol were recorded with plain GCE‚ PEDOT-GO‚ PEDOT-rGO and PEDOT-rGO incorporated with LAC at pH 7.0 and scan rate 50 mVs-1 Fig. 4.3.4. Fig 4.3.4A present CVs and the anodic peak current observes for dopamine are bare small redox peak was observed. The modification of PEDOT-GO and PEDOT-rGO were increase in increase in the redox reak compared with bare electrode. The incorporation of LAC on the PEDOT-rGO gives decrease in the oxidation and increase in the
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115 kHz low carrier frequency for inductive data transmission suited for human body energy transfer. The communication system can assist the electronic pill to trigger an actuator for drug delivery‚ to record temperature‚ or to measure pH of the body. It consists additionally to a 32bit processor‚ memory‚ external peripheries‚ and detection facility. The complete system is designed to fit small-size mass medical application with low power consumption
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Lab Report Introduction The objective of this experiment was to determine if changes in pH or temperature affected the activity of enzymes‚ specifically the enzyme sucrase. Enzymes are protein molecules that act as biological catalysts to increase the speed of the reaction or to lower the activation energy of that reaction. However‚ the activity of an enzyme can be affected by physical factors such as pH and temperature because these factors alter the structure of the enzyme (Freeman‚ 2011). We
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Compare and contrast the chemical reactions of strong and weak acids and strong and weak bases. 3. Define pH and the pH scale and understand how pH relates to the acidity of a substance. 4. Classify substances as acidic‚ basic‚ or neutral using a pH indicator. 5. Determine if a neutralization reaction has occurred. 6. Classify common household substances as acidic‚ basic‚ or neutral using a pH indicator. 7. Balance neutralization reactions. 8. Write net ionic equations for neutralization reactions
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Abstract The aim of this experiment was to investigate the effect of temperature on the enzyme catalase. The original research question was exploring the effect temperature would have on a yeast catalase reacting with hydrogen peroxide (H2O2). To address the latter question a series of experiments were conducted. The various temperatures experimented with were as follows: 22 degrees Celsius (room temperature)‚ 0 degrees Celsius (freezing)‚ 100 degrees Celsius (boiling)‚ and 37 degrees Celsius.
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LOVELY PROFESSIONAL UNIVERSITY CAPSTONE PROJECT REPORT TOPIC- ANTIMICROBIAL ACTIVITY OF DIFFERENT TYPES OF HONEY. PROJECT GUIDE- SUBMITTED BY- DR. AKSHAY GARG MOHIT KUMAR DEPT. OF BIOTECHNOLOGY REG. NO.- 10800037 ROLL NO- RB1R07B02 B.TECH BIOTECH.(8th sem.)
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reaction‚ but this time in the absence and then presence of an inhibitor. Last time you used Acid Phosphatase (Prac 1)‚ but this time you will use the enzyme Alkali Phosphatase. These enzymes have different primary (and hence tertiary) structures‚ pH optima and cofactors‚ so are more unlike than alike. However‚ Alkali Phosphatase can also catalyse the hydrolysis of the artificial substrate PNPP to PNP + P i‚ so PNPP will again be the substrate in this prac. The inhibitor you will test will be
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necessary anymore but it still serves as a useful way to introduce logarithms. b) The first field of study: Chemistry In chemistry‚ a solution’s pH is defined by the logarithmic equation: p(h) = – log10 (h) where h is the hydronium ion concentration in moles per liter. We usually round pH values to the nearest tenth. Example: Find the pH of a solution with hydronium ion concentration 4.5 x 10-5 Given h=4.5 x 10-5‚ p(h) = – log10 (4.5 x 10-5) = – ( log10 4.5 + log10 10-5 ) =
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