Student ID: 21955941 Exam: 084082RR - Basic Chemistry of Drug Molecules When you have completed your exam and reviewed your answers‚ click Submit Exam. Answers will not be recorded until you hit Submit Exam. If you need to exit before completing the exam‚ click Cancel Exam. Questions 1 to 20: Select the best answer to each question. Note that a question and its answers may be split across a page break‚ so be sure that you have seen the entire question and all the answers before choosing an answer
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Chemical Nomenclature refers to the naming systems used with chemical formulas. This worksheet focuses on the most basic chemicals and nomenclature systems. Please read the information concerning each problem set and then attempt the problems associated with that information. The simplest compounds contain just two elements. Sodium chloride‚ NaCl‚ is an example of a binary compound. Several other examples are listed below. Potassium bromide KBr Calcium bromide CaBr2 Lithium fluoride LiF
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in the periodic table; also use that information to efficiently find an unknown Halogen. Experimental Procedure: View pages 25-28 in the lab Manuel. Data and Observations: Relative Soluabilites of some Salts in Alkaline Earths | 1 M Na2CO3 | 1M H2SO4 | 1M (NH4)2C2O4 | 1M K2CrO4 & 1M HC2H3O2 | Ca(NO3)2 | 1/2 clear‚ 1/2 Milky | Clear | Milky White | Clear yellow hinge | Ba(NO3)2 | Milky White | Milky White | Milky White | Milky Yellow | Mg(NO3)2 | 1/2 clear‚ 1/2 Milky | Clear
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CHEMISTRY TOPIC 11 CHEMICAL CALCULATIONS CHEMICAL CALCULATIONS INTRODUCTION The first part of this ‘Chemical Calculations’ topic will help us to work out QUANTITIES involved in a reaction; For example‚ a manufacturer might want to know‚ How much ammonia will I produce from 20 tonnes of nitrogen in the Haber Process? To do these calculations you will need to be familiar with the term Ar (relative atomic mass)‚ Mr‚ Molar mass and Mole. Relative Atomic
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BACK TITRATION AIM - To estimate volumetrically the amount of calcium carbonate present in the eggshell and analyzing the sources of errors to evaluate the result. Part A: Standardization of 2M NaOH(aq) Data Collection : Weight of substances Uncertainty Weight of watch glass + salt (potassium hydrogen phthalate) w1= 23.4380g ± 0.001g Weight of watch glass ( after emptying the salt)w2 = 21.5430g ± 0.001g Weight of salt (potassium hydrogen phthalate) w1 –w2= (23.4380± 0.001g) – (21
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H2S(g) 3. Formation of water. (If the reaction is between an acid and a base it is called a neutralization reaction.) EX. HCl(aq) + NaOH(aq) → NaCl(aq) + H2O(l) 4. Formation of a product which decomposes. EX. CaCO3(s) + HCl(aq) → CaCl2(aq) + CO2(g) + H2O(l) NOTE: Use the solubility rules to decide whether a product of an ionic reaction is insoluble in water and will thus form a precipitate. If a compound is soluble in water then it should be shown as being in aqueous solution
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Analysis of an Antacid In this lab report we will discuss the results of the ‘Determining the Most Effective Antacids’ lab. In this lab we tested different brands of antacids to find out which will be the most effective at neutralizing acids. We will test this by seeing how much drops of hydrochloric acid (HCl) are required to neutralize a certain amount of the antacid. Antacids are used to resist heartburn. We sometimes use them to treat this because antacids are a mild base that can neutralize
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gaseous or liquid molecules are adsorbate (e.g.) H2 gas‚ Bromine‚ benzene‚ water vapour For gases‚ a special name is given as “occlusion’ 2.If the concentration is of bulk phenomenon‚ it is absorption. (e.g) Absorption of water by anhydrous CaCl2. 3. Adsorption and absorption process are collectively known as ‘sorption’. (e.g) Ammonia sent through Charcoal solution. Here ‚ Charcoal adsorbs ammonia while water absorbs ammonia. [pic] 4. Characteristics of adsorption: a. It is spontaneous
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Why does a soft drink become “flat” faster when it is left open at room temperature compared to when it is left open in the refrigerator? molecules move faster the warmer they are 6. Predict the effect each change has on the solubility of (1) Na2CO3 (s) (2) N2(g). a. increasing the temperature more b. increasing the pressure more c.
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* Compare the structure of diamond and graphite * How do you perform tollens test for detecting the aldehyde group * What are the limitations of Arrhenius theory * What is head of neutralization * How do u prepare a 0.1m standard na2co3 solution * Describe the method of extraction of magnesium from its ore. * How does the atomic radius vary in period or in a group * Explain the formation of double bond triple bond coordinate covalent bond * Define ionization energy
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