Ba(OH)2 of an unknown concentration. In order to obtain the quantitative analysis‚ the exact amount of a particular compound or element present in sample‚ two procedures were performed. The first procedure was by conductimetric titration and by gravimetric determination. The conductivity was analyzed during the reaction between the sulfuric acid (H2SO4) and barium hydroxide (Ba(OH)2). Through the conductivity‚ the equivalence point can be determined; from there‚ the concentration of the Ba(OH)2 solution
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Title: Preparation and purification ethyl alcohol Purpose: The purpose of this experiment is to form a yeast mixture with water‚ organic compound like sucrose‚ Ba (OH) 2 for fermentation process‚ and use simple distillation method to purification from the fermentation mixture. Abstract and Theory: There are many techniques that are used to purify liquid. The one that is going to use for this lab is simple distillation. It is a process of which separating a mixture based on the tendency of the
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upon the blade and to in its place‚ speak his story‚ convey to everyone what truthfully ensued here. I don’t know if I can indeed live on deprived of my honoured friend. All the years of Hamlet and I adventuring together‚ oh how the bonds of this infirmity cut deep into my soul. Oh prodigious brother of Denmark‚ now dead. Woe is me‚ I think not to
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Topic Acid-Base Theory (Unit 1) Acid-Base Theory (Unit 2) Isomerism (Unit 1) Isomerism (Unit 2) Nomenclature Reaction Mechanism (Unit 1) - Introduction to Mechanism Reaction Mechanism (Unit 2) - Nucleophilic substitution Reaction Mechanism (Unit 3) - Nucleophilic substitution Reaction Mechanism (Unit 4) - Nucleophilic substitution Reaction Mechanism (Unit 5) - Nucleophilic substitution Reaction Mechanism (Unit 6) - Nucleophilic substitution Reaction Mechanism (Unit 7) - Elimination Reaction Mechanism
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| The answer is found in the fact that these sugars are literally covered with hydroxyl (-OH) groups. As shown in Figure 3 on the right‚ a hydroxyl group on one sugar (-OH) can be connected to another hydroxyl group (HO) on a second sugar by removing an -OH from the first sugar and a H- from the second leaving a -O- bond connecting the two sugars in a disaccharide. In addition‚ the released -OH and H- join to form H2O (HOH). The name of the -O- bond is called a glycosidic bond. The bond
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anions generally form precipitates? What are exceptions? Most salts of carbonate: CO 2-‚ phosphate: PO 3-‚ oxalate: C2O4 2-‚ chromate‚ CrO4 2-‚ sulfide: S 2-‚ and most metal hydroxides and oxides. Exceptions include alkali metal hydroxides and Ba(OH)2. D - Which anions generally do not form precipitates? What are the exceptions? See solubility table/rules below Salts of nitrate: NO3-‚ chlorate: ClO3-‚ perchlorate: ClO4-‚ acetate: CH3CO2-‚ almost all salts of Cl-‚ Br-‚ I-‚ Salts of sulfate:
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34‚500 steel rings.) With this alternative‚ RMG can finish the production during the summer slack season. They will incur the direct labor cost in this period and the wages that will additionally paid will be 30% of the regular wages. The variable OH cost is 80% of direct labor costs. The total incremental costs are as shown in the right table. Incremental cost on alternative 3 (Start to produce plastic rings in September.) Because RMG needs to prepare for the plastics production until September
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be found not guilty. As an employer‚ you aren’t expected to anticipate and prevent all possible accidents. However‚ you must take all the precautions that a reasonable and prudent person would take in the circumstances. If an employer has all the OH&S program elements required by the Occupational Health and Safety Regulation in effect and working well‚ they will generally be acting in due diligence. The employer also has to take special steps to control specific hazards in order to show that they
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going to show you a funny photo of me. D: Wow‚ what kind of photo? R: " Chiadang!! " Hahaha‚ it is so funny right? D: Oh my God! What are your dog doing? Are you two sleeping together? R: Of course no‚ well at that time‚ I was napping soundly. I think that she felt alone‚ so she jump up to my bed and began to teasing me‚ hahaha! I think she just wanted to play with me. D: Oh I see‚ What’s her name? And how old are she is? R: We named her "Pipi". We felt that this is a boy’s name at the beginning
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Assessment activity 1: Locate and communicate OHS policies which clearly express the organisation’s commitment to implement relevant OHS legislation in the enterprise What information should be provided when communicating policies to staff? Information that should be provided to staff when communicating policies are as follows Duties of the employers‚ Duties of the employees and contractors Health and safety committees Discrimination in the workplace Risk assessments Control of risks Recording
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