11. Account for the fact that ethylene glycol (HOCH2CH2OH) is less viscous than glycerine (HOCH2CHOHCH2OH)‚ but more viscous than ethyl alcohol (CH3CH2OH). 20. Consider the following substances: sodium fl uoride (NaF)‚ chlorine monofl uoride (ClF)‚ hydrogen fl uoride (HF)‚ and fluorine (F2 ). (a) What type of particles does each substance have? (b) What type of intermolecular attractive forces hold the particles together in each substance? The table below lists the melting point (mp)‚
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Running head: ALCOHOL AND WOMEN Alcohol and Women Alcohol and Women Throughout history‚ discussions of and concern about women ’s drinking have commonly been characterized by distortion‚ myth‚ prejudice and stereotyping. Until relatively recently‚ many studies were male-oriented‚ and excluded women. Other studies included both genders but often failed to examine possible gender differences in alcohol consumption‚ alcohol-related behaviours and experiences. "The issue"‚ in this context‚ is
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Chemistry 521 Exam I‚ Spring Quarter 7:30 - 9:00 PM‚ 25 April 2000 NAME 1. [10 points] What are the concentrations of HSO− ‚ SO2− ‚ and H+ in a 0.20 M KHSO4 solution? (Hint: 4 4 H2 SO4 is a strong acid; Ka = 1.3 × 10−2 for HSO− .) 4 2. [15 points] Calculate the pH of 1.00 L of the buffer 1.00 M CH3 COONa/1.00 M CH3 COOH (pKa = 4.74) before and after the addition of (a) 0.080 moles NaOH and (b) 0.12 moles HCl. (Assume there is no change in volume). 3. [10 points] The following reaction
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Plants contain many pigments in different proportions. For flowering plants it’s mostly a combination of chlorophyll-A‚ chlorophyll-B‚ pheophytin and Carotenes. These pigments have shades of green‚ blue green‚ grayish‚ and yellow-orange. Their concentration is different for different species and also depends on the time of year. Also‚ these pigments have different solubility in different solvents. Extracted pigments could be used in another project‚ such as chromatography. Attention! This method
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"Do different concentrations of solutions determine the mass of a potato?" Introduction: The way to get the full results of this lab was through the process of osmosis. Osmosis is the movement of water across a membrane into a more concentrated solution to reach an equilibrium. When regarding cells osmosis has three different terms that are used to describe their concentration. The first of these words is isotonic. Cells in an isotonic solution show that the water has no net movement and the amount
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In my investigation I am going to establish the effect of changing light intensity on the rate of photosynthesis. What is Photosynthesis? Photosynthesis is how plants get their food. The reason why plants have leaves‚ roots or being green is all linked to photosynthesis. In photosynthesis‚ a plant takes carbon dioxide from the air and water from the soil and uses the light from sunlight to turn them into food. Photosynthesis occurs only in the presence of light‚ and takes place in the chloroplasts
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Essay on Alcohol Alcohol is not only the reason why prohibition took place in the 1920s‚ but it is also the reason why many persons wake up not remembering their pervious night’s events. It has always been evident that alcohol has an effect on brain function‚ which in-turn impairs the behavior of a person. Alcohol can be separated into two separate groups: what is expected to happen‚ and what actually happens. Alcohol is expected to play social lubricant and aphrodisiac. When it comes to being
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Dangers of Alcohol There are many dangers of using Alcohol‚ but there are only about 3 that stand out the most to me. The 3 dangers that get my attention are liver problems‚ bad judgment‚ and addiction. Although these may not be the deadliest dangers of alcohol‚ they are the deadliest to me. First off‚ the job of the liver is to remove toxins from the body. Alcohol is a type of toxin that the liver has to try and remove. The liver can only process so much alcohol‚ and any extra alcohol that is left
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* Executive Summary In 2001 spirit makers ended a long standing volunteer policy against aggressive alcohol advertising (Steiner and Steiner‚ 2009). Since that time‚ there has been an unprecedented shift toward increased alcoholic advertisements in an effort to increase market share and raise profits. This shift brings into light the challenge alcoholic companies face in balancing their fiduciary duties to their shareholders and their corporate and social responsibility to society. This report
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Anthony Svizzero October 14‚ 2010 Alcohol Edu Reflection Through this experience‚ I gained much insight into the negative effects and consequences that are associated with the consumption of alcohol. This course has taught me and equipped me with many facts and information about alcohol that I was not previously aware of. With this gained knowledge I am a more informed person whom can make better decisions for myself that will not place myself for the people around me in dangerous situations
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