Equilibrium Shift Colour Change A. left less blue B. left more blue C. right less blue D. right more blue 9. A basic buffer solution can be prepared by mixing equal numbers of moles of A. NH4Cl and HCl B. NaCl and NaOH C. NH4Cl and NH4OH D. NaCH3COO and CH3COOH 10. Which of the following would be used to prepare an acidic buffer solution? A. HF and H3O+ B. NaHS and H2S C. NH3 and NH4Cl D. HCl and NaCl 11. A solution of AgNO3 is slowly added to a mixture
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Executive reaction - What is the right supply chain for your product‚ Newsvendor 1) What were the main supply chain issues or concepts presented in the article? (Use a bullet point list) Utilizing the right supply chain for products is critical to improve performance Understand the nature of demand for products helps managers to devise supply chain that can satisfy that demand Products that are classify by demand patterns are either functional or innovative Each type requires a different
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sulfate at 25°C. (1) 17 kJ/mol (2) 20 kJ/mol (3) 27 kJ/mol (4) 32 kJ/mol (5) 35 kJ/mol 4. When 20.0 mL of 0.100 M NaOH is added to 20.0 mL of 0.400 M NaH2PO4‚ the pH of the resulting buffer solution is 6.73. What is the acid component of the resulting buffer solution and what is the
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Investigation into how pH levels affect Catalase activity in potato samples – (enzymes) Introduction: The aim of this investigation is to understand and monitor the effects pH levels have on catalase activity within controlled potato samples. Catalase is a type of enzyme that is found widespread among organisms that grow in the presence of oxygen (almost all living things) its specific use is to speed up the decomposition of Hydrogen peroxide (H2O2) within cells. Hydrogen peroxide is a bi-product
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supplementation during boxing has not been reported in scientific journals. Therefore‚ the authors felt that it was important to see if there was an ergogenic potential of sodium bicarbonate ingestion. It was hypothesized that sodium bicarbonate loading would buffer the extracellular hydrogen ions produced by glycolysis and
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The dissolution of the drug in different liquisolid formulations was performed in 500 ml simulated salivary fluid (phosphate buffer pH 6.8) maintained at 37 ± 0.5 ºC using the USP dissolution tester apparatus II‚ at a rotation speed of 50 rpm. Aliquots from the dissolution medium were withdrawn at 1‚ 2‚ 3‚ 4‚ 5‚ 6‚ 7‚ 8‚ 9‚ 10‚ 12.5‚ 15‚ 20‚ 25 and 30 minutes time intervals. The samples were changed with fresh dissolution medium of same amount to maintain a constant volume in the vessels. Samples
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Computer Enzyme Action: Testing Catalase Activity 6A H2O2 is toxic to most living organisms. Many organisms are capable of enzymatically destroying the H2O2 before it can do much damage. H2O2 can be converted to oxygen and water‚ as follows: 2 H2O2 → 2 H2O + O2 Although this reaction occurs spontaneously‚ enzymes increase the rate considerably. At least two different enzymes are known to catalyze this reaction: catalase‚ found in animals and protists‚ and peroxidase‚ found in plants. A great
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ACID/BASE You might need to know the following K values: CH3COOH Ka = 1.8 x 10–5 Benzoic Acid Ka = 6.5 x 10–5 HNO2 Ka = 4.5 x 10–4 NH3 Kb = 1.8 x 10–5 HF Ka = 7.2 x 10–4 H2S Ka = 5.7 x 10–8 HSO4– Ka = 1.2 x 10–2 HS– Ka = 1.2 x 10–13 HCOOH Ka = 1.8 x 10–4 HOCl Ka = 3.0 x 10–8 SIMPLE ACIDS AND BASES 1. According to the Brønsted–Lowry definition‚ which species can function both as an acid and as a base? (A) Cl– (B) SO42– (C) NH4+ (D) HCO3– (E) H3O+ 2. Which of the following
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Guidelines for writing laboratory reports Laboratory reports should be written according to the format below (failure to do so will result in marks being deducted): Formatting Font Type: Times Roman Font size: 12 Spacing: 1.5‚ justified Pages : 5 (minimum) - 10 (maximum) [pages must be numbered] Title page You are required to use the lab report submission page available on the LMS and are to include these details: lab no.‚ title of experiment‚ students’ names and ID‚ date of experiment as well
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L angmuir 1995‚11‚ 2344-2347 2344 Coating Polystyrene Particles by Adsorption of Hydrophobically Modified Dextran C . Fournier‚ M. Leonard‚* I. Le Coq-Leonard‚ and E . Dellacherie L CPM‚ URA C NRS 494‚ ENSIC B.P. 4 51‚ 54001 Nancy‚ France Received March 14‚ 1995. I n Final Form: May 22‚ 1995@ I n order to decrease their hydrophobicity and thus t o reduce the protein adsorption at their surface‚ polystyrene-divinylbenzene (PS-DVB) particles have been coated with dextran. To favor its adsorption
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