DESIGN OF THE QUESTION PAPER CHEMISTRY CLASS - XII Time : Three Hours Max. Marks : 70 The weightage of the distribution of marks over different dimensions of the question paper shall be as follows: A. Weightage to content/subject units Unit Title Marks 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. Solid state Solutions Electrochemistry Chemical Kinetics Surface Chemistry General principles and process of Isolation of elements p-Block Elements
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Problem Statement: Chem-Med Company is positioned strongly in its industry to achieve high growth and earn large profits in the future‚ but it is in need of financing. To secure this financing‚ Chem-Med must address concerns of potential financers and investors regarding liquidity‚ efficiency‚ cash flow‚ and the need for funding despite apparent growth. In addition‚ Chem-Med’s primary competitor‚ Pharmacia‚ is out-competing the company and stealing valuable market share and sales volume with lower
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Identifying a Salt by Creating its Heating Curve Introduction: Solubility is a substance’s ability to be dissolved in a liquid‚ usually water‚ and some substances are more soluble than others. A solution can be saturated‚ unsaturated or supersaturated. Temperature plays a large role in the solubility of substances. For example‚ on table G of the Chemistry reference tables it shows that 10g of KClO3 will dissolve in 100g of water at about 25°C‚ but at about 48°C‚ 20g will dissolve. The higher the
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1. Hydrogen Name: Hydrogen Atomic number: 1 Atomic Weight: 1.00794 grams/mole Standard state: gas at 198 K Hydrogen is the lightest Hydrogen is the lightest element. It is by far the most abundant element in the universe and makes up above 90% of Universe by weight. Hydrogen as water (H2O) is absolutely essential to life and it is present in all organic compounds. Hydrogen is lightest gas. Hydrogen gas was used in lighter-than-air balloons for transport but is far too dangerous because
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The Experiment Gloria Isham Central Texas College Twenty- six men are chosen to participate in the roles of guards and prisoners in a psychological study led by a Doctor Archaleta for which each participant is to receive $14‚000 after two weeks. Travis has just lost his part time job and is a peace protester who wants to travel to India with his girlfriend. Barris is a 42-year-old who lives alone with a domineering mother‚ who has made him join the experiment to raise money for her hip operation
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Experiment 1 Introduction to basic lab equipment and components Introduction: To use an electronics lab‚ it is necessary to become familiar with some typical equipments and components‚ to reduce the accident and damaging the equipments. So the experiment will be accomplished with the right result and everything still in one peace. Objective: • To be familiar and understandings the operation of the basic components and equipments in electronics lab. • To know the color code of the
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MoonChem Case The vice-president of Moon Chem‚ a manufacturer of speciality chemicals would like to conduct a study on the policy of providing consignment inventory to its customers in the Midwest region. The aim of this study is to analyze different options for distribution available in the Peoria region and to conclude with the optimal distribution policy. Successful results following this study would allow the company to introduce the consignment inventory strategy nationwide. A careful study
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Ideal Gas Behavior Author: VanessaStoll Lab Partners: Janelle Vallejo Instructor: Nieves Montano Chem 151‚ Section 002G Date Work Performed: February 12‚ 2014 Date Report Submitted: February 20‚ 2014 Abstract: This paper reports a lab experiment done on the ideal gas law to determine differences in gas based upon their “R” constant difference to 0.082057. A total of seven gases were tested‚ which included‚ Ethanol‚ Hexane‚ Cyclohexane‚ Pentane‚ Ethyl Acetate‚ Butane and Acetone
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process of distillation. Distillation is the separation of volatile substances mixed with nonvolatile substances by boiling the mixture to alter the phase of the volatile substance. The researchers used the simple distillation set up to conduct the experiment. 25 ml of The Bar Vodka was used and 7 ml of distillate was collected before a temperature of 95 degrees Celsius was reached. Collected distillate was then subjected to a flammability test to confirm ethanol content. The percent ethanol was computed
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question and answer book is provided with this data book. Students are NOT permitted to bring mobile phones and/or any other unauthorised electronic devices into the examination room. © VICTORIAN CURRICULUM AND ASSESSMENT AUTHORITY 2012 2012 CHEM DATA BOOK 2 Table of contents page 1. Periodic table of the elements 3 2. The electrochemical series 4 3. Physical constants 5 4. SI prefixes‚ their symbols and values 5 5. 1H 6.
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