primary standard to analyze acid and base solutions Acid-base titration Lab 13G Jake Shewchuk Lab 13C Dominique Genereux Purpose 13G: 1. To prepare a standard solution of oxalic acid and use it to standardize an unknown sodium hydroxide solution. Purpose 13C: 1. To titrate a hydrochloric acid solution of “unknown” concentration with standardized 0.5M sodium hydroxide. 2. To titrate a hydrochloric acid solution of “known” concentration
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Jeronimo Martins Group’s Consolidated Balance Sheet as of 31 December 2011 and 31 December 2010‚ has been analyzed respectively the correspondents values‚ structure and relevant changes for assets and Liabilities & Shareholder’s Equity with following conclusions: I. The main assets of Jeronimo Martins Group are noncurrent (about 75%) concentrated mostly in tangible assets (about 50%) followed for the intangible assets (about 18%); II. The current assets are mostly inventories and cash or cash equivalent;
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Global Review Sheet- FINALS * Anthropologist- someone who studies culture * Neolithic revolution agriculture; no more nomads; settlements * River Valley Civilizations (all the civilizations had 2 rivers except for Egypt) * Mesopotamia * Tigris and Euphrates rivers * Egypt * The Nile river * Indus * The Indus and Ganges rivers * China * Huang He and Yangtze rivers * Mesopotamia
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Osmosis & Diffusion Review Sheet Name: Fill in the Blank away low high hypertonic hypotonic diffusion molecules osmosis vacuole water solute permeable towards semi-permeable concentration gradient 1. The cell membrane regulates and controls what kind of molecules ______ move in & out of the cell. 2. When molecules spread from an area of high to low concentration‚ it is called _Diffusion_____. 3. As molecules diffuse‚ they create a _concentration gradient_____
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HISTORY SIX WEEK EXAM REVIEW 2013 It is not possible to cram for an exam covering ALL OF WORLD HISTORY. In order to properly prepare for this exam‚ you will need several weeks to master the content as well as the skills. The following plan will help you to manage your time and get you ready for the test. It would be best if you worked in study groups of 3-4 classmates. Prepare to spend SEVERAL HOURS each weekend reviewing the content of this course. You should have a review book to help you.
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Section 9-1 Review Key Ideas 1. Identify the primary source of energy that flows through most living systems The sunlight. Autotrophs use sunlight to make their own food. Organisms that can’t make their own food consumed the food molecules made by autotrophs‚ eat autotrophs or eat organisms that consumed autotrophs. 2. Explain how an organism’s metabolism is related to Earth’s carbon cycle. An organism’s metabolism is related to using energy to build organic molecules which contain
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Food Web Singleton 1 Food Web Derrick Singleton BIO/101 6/25/12 Mark Kato Food Web Singleton 2 While our ecosystem does exist‚ without dramatic changes‚ we can speak of the objects without contradicting
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most simple bath bomb recipes have: baking soda‚ citric acid‚ and cornstarch. When baking soda and citric acid are mixed together with some water‚ they undergo a chemical reaction. Specifically‚ this reaction involves acid-base chemistry‚ since the baking soda—also known as sodium bicarbonate (NaHCO3)—is a weak base‚ and citric acid (C6H8O7) is a weak acid. This reaction is shown in Equation 1‚ below. As you can see from Equation 1‚ the acid-base reaction produces carbon dioxide (CO2) gas. This gas
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Review Sheet chapters 11‚12‚ 13‚ 14 Piaget’s Cognitive Developmental Theory: Piaget’s stages of cognitive development: Sensorimotor- Infant -6mos. Preoperational- 2-6mos. Concrete Operations- 6-11mos. Formal Operations- 12- Sensorimotor- birth to age 2- initial major stage of cognitive behavior/ invariant order of stages individual different innate 1. Simple Reflexes ( 0-1 month) 2. Habits and primary circular reactions (1-4 month) • Activity that permits the construction of cognitive
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GRADE 10 SCIENCE REVIEW: TDSB CANADA CHEMISTRY – chapters 5‚6‚7 1. Physical Properties: can be observed without changing the composition. i.e colour‚ density‚ taste‚ smell‚ boiling point. Chemical Properties: cannot be observed without changing the composition i.e combustability‚ corrosiveness Qualitative Properties: word descriptions Quantitative: numerical mesurements. Signs of chemical reaction: 1. colour change 2. new gas (bubbling or new smell) 3. new shape 4. releases heat or
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