Part 1 – Design a strategy for neutralizing Fish Lake What do I know? (What do I remember about the neutralization reaction) Neutralization is when an acid and base are mixed together to me an ionic compound or which are 7 on the pH scale or pure water‚ it is also when a base and acid are mixed to make it in a neutral state. What am I wondering? (What are your rough ideas to fix an acidified lake?) I will be finding a base that will work the most effective way‚ also I will find a base that can
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quickly killing them. Many biological stains kill living cells. 2. Neutral red goes through an obvious color change‚ from red at about pH 6.8 to yellow at pH 8.0. 3. A 1% solution of sodium bicarbonate has a pH of about 8.5. 4. Yeast cells have an internal pH that is slightly acidic (about 5.5 to 6.0). Concepts • Diffusion • Active transport • Acid–base indicators • Selective permeability Materials Ammonia solution‚ NH3 ‚ 0.01 M Beaker‚ 100-mL Hydrochloric acid solution‚ HCl‚ 0.01 M Filter
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Date: 07/27/14 Total Score: 100 % 1 CATEGORY anatomy QUESTION Backward effects of left-sided heart failure include: CORRECT ANSWER A) Pulmonary congestion YOUR ANSWER A) Pulmonary congestion Deoxygenated blood from the right ventricle flows through the right and left pulmonary arteries to the right and left lung. After entering the lungs‚ the branches subdivide‚ finally emerging as RATIONALE capillaries which surround the alveoli and release the carbon dioxide in exchange for oxygen. The capillaries
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contains four sections‚ SECTION A to SECTION D. Instructions: Answer all questions in SECTION A - SECTION D. Make sure that the section heading is included and your answers are correctly numbered. The assignment must have a completed cover sheet. It must be placed in the drop-box on or before the deadline. st SECTION A ELECTRONIC STRUCTURE & IONIZATION ENERGY 1. 2. Write the electronic structure in s‚p‚d notation of the following: O‚ Na‚ Na+‚ Al‚ Cl- and Co
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first collecting rainwater from selected rural and urban areas. After the collection was done‚ the rainwater samples were tested using a pH meter. The results of the pH test of rainwater in urban areas: in Novaliches‚ Quezon City‚ in Philcoa‚ Quezon City‚ in Katipunan‚ Quezon City‚ in Paco‚ Manila‚ and in Malate‚ Manila are between 6.08 to 6.10 The result of the pH test of rainwater in rural areas: in Iriga City‚ Bicol‚ in Buhi‚ Bicol‚ in Naga City‚ Bicol‚ in Calamba‚ Laguna‚ and in Biñan‚ Laguna
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UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS General Certificate of Education Ordinary Level CHEMISTRY Paper 1 Multiple Choice May/June 2005 1 hour Additional Materials: Multiple Choice Answer Sheet Soft clean eraser Soft pencil (type B or HB is recommended) 5070/01 w w w e tr .X m eP e ap .c rs om READ THESE INSTRUCTIONS FIRST Write in soft pencil. Do not use staples‚ paper clips‚ highlighters‚ glue or correction fluid. Write your name‚ Centre number and candidate number on the answer
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August 28‚ 2009 [PROBLEM SET FROM R. CHANG TEST BANK] 5. Calculate the pH of a buffer solution that contains 0.25 M benzoic acid (C6H5CO2H) and 0.15 M sodium benzoate (C6H5COONa). [Ka = 6.5 × 10-5 for benzoic acid] A. B. C. D. E. 6. A solution is prepared by mixing 500. mL of 0.10 M NaOCl and 500. mL of 0.20 M HOCl. What is the pH of this solution? [Ka(HOCl) = 3.2 × 10-8] A. B. C. D. E. 7. 0.97 3.10 4.40 3.70 4.30 Calculate the pH of a solution that is 0.410 M in HOCl and 0.050 M in NaOCl. [Ka(HOCl)
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Science Investigatory Project How to make a Biodegradable Plastic using cassava starch? ABSTRACT The study aims to produce biodegradable plastic using cassava starch as its main component. Cassava starch was mixed with water‚ epoxydized soya beanoil (ESBO)‚ glycerol‚ and polyvinyl alcohol (PVA). The mixture was then compressed and tested. Three preparations were made from the mixture. The first preparation contained 50 grams starch‚ 50 grams water‚ 50 grams PVA‚ 2.5 grams ESBO‚ and 2.5 grams
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INTRODUCTION: Carbohydrates are the product that made up from carbon‚ hydrogen and oxygen. Carbohydrates are form by the combination of carbon dioxide and water molecules. The carbohydrates contain two specific functional group in it which is the hydroxyl groups and carbonyl groups.A reducing sugar is a type of sugar with is an aldehyde group.This means that sugar can act as a reducing agent.The procces of reducing sugar is isomerisation‚example of reducing sugar islactose
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experiment was to determine the pH level of an unknown HCl solution. While doing so‚ we would also be receiving a good and fundamental understanding of how to use modern lab equipment to determine the chemical and physical properties of water bodies. Method: Make sure safety gear is always on and equipment is always clean. Part 1- Direct Analysis by pH Test Kit We grab a 50ml beaker and obtain a sample of unknown HCl as said to do in the procedure section in page 3. A pH test kit was provided
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