Composition and Molecular Formula Worksheet 1. What’s the empirical formula of a molecule containing 65.5% carbon‚ 5.5% hydrogen‚ and 29.0% oxygen? 2. If the molar mass of the compound in problem 1 is 110 grams/mole‚ what’s the molecular formula? 3. What’s the empirical formula of a molecule containing 18.7% lithium‚ 16.3% carbon‚ and 65.0% oxygen? 4. If the molar mass of the compound in problem 3 is 73.8 grams/mole‚ what’s the molecular formula? Write the molecular formulas of the
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Claire Kerns Bio Per.1 2-13-13 Cancer reflection Is cancer a disease due to genetics or environment? Cancer is a disease both caused by genetics and environmental factors. Each person has either proto-oncogenes or oncogenes. These are the genes that are responsible for regulating cell division. When a person has an oncogene it is a mutation of a proto-oncogene. The oncogene (dominant gene) tells the cell to continuously divide. This can be a problem if the cell is cancerous. Cancer cells
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MOLECULAR BIOLOGIST Education/Training Required: All molecular biologists must at least earn a bachelor’s degree in a related science field. Required courses usually include cell biology‚ evolutionary biology‚ genetics‚ ecology‚ general chemistry‚ biochemistry‚ organic chemistry‚ physics‚ molecular biology‚ multivariable calculus‚ and linear algebra. Most jobs for molecular biologists require a doctoral degree. During college‚ students may want to participate in science-related activities
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RESEARCH QUESTION How does the glucose concentration effects the time taken for the potassium permanganate to decolourise from purple to colourless ? HYPOTHESIS The higher the glucose concentration the shorter the time taken for the potassium permanganate to decolourise from purple to colourless. VARIABLES VARIABLE | UNITS | RANGE | METHOD FOR CONTROL | INDEPENDENT VARIABLE-Concentration of glucose solution | % | 5%10%15%20%25%30% | Different glucose concentration are tested | DEPENDENT VARIABLE-The
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Activity 1.2.3 – Perspective Sketches Answer Key Purpose If you can stand on a straight road and look down the road‚ it appears to you the sides of the road begin to look as if they are narrowing to one point in the center of the road vanishes when the road meets the horizon. If the road is straight enough and long enough‚ the sides of the road not only look like they are converging to a single point‚ but the road seems to appear to vanish as it meets the horizon. A similar effect happens if
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down to make energy. Gizmo Warm-up Have you ever wondered what is in your food? Scientists use a variety of tests to determine the nutritional content of food. You will learn four of those tests with the Identifying Nutrients Gizmo™. 1. Below the Food samples label‚ drag tube A into the Food sample holder. Below the Benedict test‚ click the Test button. The Benedict test is a test for monosaccharides; simple sugars like glucose or fructose (fruit sugar). In contact with monosaccharides
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7.6 Summary 1. 7.6 Molecular Orbital Theory a. Intro i. Molecular orbital theory states that the atomic orbitals involved in bonding actually combine to form new orbitals that are the property of the entire molecule‚ rather than of the individual atoms forming the bonds. 1. The new orbitals are called molecular orbitals. ii. Electrons shared by atoms in a molecule reside in the molecular orbitals. iii. Molecular orbitals are like atomic orbitals
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PageOut® Quick-Assessment Preview http://hawwat.pageout.net/page.dyn/instructor/assessment/quick_assessme... Quick-Assessment Review BIO Instructions BIO Go to : http:// This assessment is worth 30 points. 1. The Shine-Dalgarno sequence is a (1 point) a. b. prokaryotic mRNA sequence that binds lF-3. prokaryotic mRNA sequence that binds the 16S rRNA of the small ribosomal subunit. prokaryotic mRNA sequence that binds the 16S rRNA of the large ribosomal subunit. eukaryotic rRNA sequence
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Bradbury‚ Author of Fahrenheit 451‚ made many predictions as to what this day and age would be like. He was right in many cases including speed‚ entertainment‚ and the mindlessness of people. He predicted that nobody would speak more than a couple of words at a time to a certain person. That makes the people seem mindless because they don’t talk or ask questions. Ray also predicted that people would drive by places so fast that the y don’t even know what they passed. That has not quite happened in
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H Week 8 Week 8 Lab: Molecular Biology Review Test Submission: Molecular Biology Lab Assessment Review Test Submission: Molecular Biology Lab Assessment Us er Cours e Introduction To Biology Tes t Molecular Biology Lab As s es s m ent Started 8/19/14 10:14 AM Subm itted 8/19/14 10:22 AM Status Com pleted Attem pt Score 27 out of 30 points Tim e Elaps ed 7 m inutes out of 2 hours . Ins tructions
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