The unknown carboxylic acid’s melting point was 108°C according to the Mel-Temp machine. The melting point is the temperature at which a solid precipitate changes into its liquid form upon heating. The melting point of benzoic acid‚ the aromatic carboxylic acid was 122°C. Thus‚ the product contained impurities which caused the solid to melt at a lower temperature than the actual temperature. Pure solids typically melt at higher temperatures while impure solids melt at lower temperatures. This is
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GIVEN: TO DESIGN A 1000TPD CAPACITY H2SO4 ACID PLANT BASIS: 1 HOUR OF OPERATION. PURITY: PRODUCT WHICH IS TO BE MANUFACTURED IS ASSUMED TO HAVE STRENGTH OF 98% ACID. 1000TPD implies that we have Acid 1000 x 10 / 24 = 41666.67 Kg/Hr of 3 With 98% purity‚ the acid that is produced per hour = (98 x 41666.67) / 100 = 40833.34 Kg/Hr Kmoles of Sulfuric acid to be produced = 40833.34 / 98 = 416.667 Kmoles/Hr It’s assumed that overall absorption of the acid is 100 % = 416.667 / 1.0 Then‚ SO3 required
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Raymond Williams says this _______is one of the two or three most complicated words in the English language. B. culture Which of the following is NOT one of the ways of understanding ideology that Storey (2009) discusses? B. Ideology reveals the reality of domination from those in power and those who are Which of the following is NOT one of the definitions of popular culture. Popular culture is: D. A culture which emerged during feudalism Which of the following is NOT one of the purposes
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ICSE Class X Chapter 5 Hydrogen Chloride and Hydrochloric Acid Hydrogen chloride (HCl) : Formula : HCl Nature : Covalent. Molecular Mass : 36·5u [i.e. HCl = 1 + 35·5 = 36·5] Occurrence : (i) Present in gastric juices. (ii) Present in volcanic gases. Laboratory preparation of HCl gas : Hydrogen chloride gas is prepared in laboratory by heating conc. H2SO4 with NaCl. NaCl + H2SO4 Heat → NaCl + NaHSO4 Heat → NaHSO4 + HCl Sodium hydrogen sulphate Na2SO4 + HCl
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When considering which child custody Plano TX parenting plan will work best for your divorce situation‚ your first consideration may be what is called the "50/50 custody schedule." In this child custody Plano TX arrangement‚ both parents split parenting time with their child or children equally. This is usually the preferred arrangement because both parents see it as equitable‚ not to mention it tends to make divorce easier and less stressful for the kids. However‚ your family’s unique dynamic will
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Title IX at 40 Title IX is a portion of the Education Amendments of 1972 which states "No person in the United States shall‚ on the basis of sex‚ be excluded from participation in‚ be denied the benefits of‚ or be subjected to discrimination under any education program or activity receiving federal financial assistance..." This federal civil rights law prohibits sex discrimination in education and has helped to eliminate and prevent barriers to students ’ success in school. It has helped open
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Experiment # 3 Acetylsalicylic Acid Introduction: The purpose of this experiment is to create and isolate pure acetylsalicylic acid from the substances salicylic acid and acetic anhydride. Then one will find the melting point to determine purity. Procedure: Make a hot bath. Weigh some salicylic acid and place in conical vial. Add .480mL of acetic anhydride and a drop of concentrated phosphoric acid. Drop in a magnetic spin vane and attach air condenser to vial. Partially submerge it in
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LAB 6. ACIDS AND BASES: PH AND BUFFERS PURPOSE: To determine the pH of common acids and bases using a pH meter‚ pH paper‚ and red cabbage indicator. To test the effect of adding an acid or base to a buffer solution. SAFETY CONCERNS: Always wear safety goggles. Wash with soap and water if skin contacts acids or bases. ACIDS: An Acid is a substance that when dissolved in water will produce hydrogen ions‚ H+‚ in the solution. An acid that does not contain carbon is called an inorganic
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Ragtime‚ Blues and Jazz Whenever we think of classical music‚ Jazz will always came up to our mind and when we talking about Jazz‚ we somehow always relate it to Blues and Ragtime since they are the ones that gave birth to Jazz. The similarities between Ragtime and Blues are that they both came from African American background‚ but they are not related. They are two different style of music The Blues came before Ragtime‚ it was born during the days of slavery and more likely playing as church
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50 Africa Facts Here is the list of 50 facts about the continent of Africa. 1. There are 54 countries and one “nonself governing territory”‚ the Western Sahara‚ in Africa. 2. All of Africa was colonized by foreign powers during the “scramble for Africa”‚ except Ethiopia and Liberia. 3. Before colonial rule Africa comprised up to 10‚000 different states and autonomous groups with distinct languages and customs. 4. The Pharaonic civilization of ancient Egypt is one of the world’s oldest and
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