Variable: The volume of reactants added Equipment: 2 100 ml beaker 2 measuring cylinders 10 ml of 0.1 molL-1 HCL(aq)‚ NAOH(aq) 20 ml of 0.1 molL-1H2SO4(aq)‚ CuSO4(aq) 30 ml of 0.1 molL-1 Ba(NO3)2(aq) Universal indicator Filter Paper Funnel 4 test tubes Reaction A- Method: 1) Measure 10 ml of 0.1 molL-1 of Hydrochloric Acid using a measuring cylinder. 2) Measure 10 ml of 0.1 molL-1 of Sodium Hydroxide solution using another measuring cylinder. 3) Pour the 2 solutions
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Rinsed the buret with two 5-mL portions of the NaOH solution. Discard the washings. Observed the markings on the buret. The top is marked 0.0-mL and the bottom 50-mL. Place a small funnel in the top of the buret and slowly pour the NaOH solution into the funnel. NaOH solution reaches the top line‚ lift the funnel and allow the solution to fill top line. Using a small beaker‚ slowly open the stopcock and drain NaOH solution untilthe meniscus of the NaOH solution is at the 0.00-mL line or below
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forms bubbles in carbonated beverages‚ like sodas. A pair of glasses‚ a funnel‚ lab coat‚ teaspoon‚ 4 medium-sized balloons‚ baking soda‚ permanent marker‚ vinegar and 4 plastic 500 ml bottles are needed. Procedure Step 1: Put on glasses and lab coat. Step 2: Stretch balloons several times to ensure they are flexible‚ without any holes. Step 3: Use the permanent marker‚ label the 4 bottles: 1‚ 4‚ 7‚ 10 Step 4: Use the funnel‚ add 1 level teaspoon of baking soda to each
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to a mixture will pronate the base to a salt and alternately if a base is added the acid will deprotonate to give a salt product. When extraction is performed in a separatory funnel two noticeable layers form and the polar charged aqueous layer can be drained to leave the nonpolar neutral organic layer in a separatory funnel. Salts formed with the addition of acid or case are soluble in
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Discussion The second experiment of the semester focuses on separating and identifying the components of Panacetin‚ which is a common medication that relieves pain. The label reveals that Panacetin is composed of sucrose (10%)‚ aspirin (40%)‚ and Tylenol (50%). Although this information is reported‚ the true composition of Panacetin is questionable. While sucrose and aspirin are present in Panacetin‚ Tylenol may be replaced by an unknown component (acetanilide or phenacetin). Separation of the components
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which do not get exposed to the Rose leaf extract.” Materials: For week 1 and week 2 the following materials were used: 10 grams of fresh leaves (rose)‚ sandwich-type plastic bag‚ a scale‚ a blender‚ 100 mL of distilled water‚ folded cheesecloth‚ a funnel‚ one stock bottle‚ 3 pieces of filter paper‚ two Petri dishes‚ and 40 radish seeds. Methods: According to the Topics in Biology Laboratory Manuel‚ the experiment was conducted as follows: First we needed to collect fresh leaves from one plant species
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com/info/Glossary [Accessed on 23 October 2013] Anon. (2013) What is search marketing? Search Engine Land (online) http://searchengineland.com/guide/what-is-sem [Accessed 4 November 2013] Anon. (2012). Why are Customers Dropping Out of Your Conversion Funnel? Cybertising (online). Bouchard‚ A. et al (2013) Role of Digital in Media Mix: Understanding Digital Marketing and Getting it Right. Capgemini Consulting http://www.capgemini-consulting.com/sites/default/files/resource/pdf/digital_marketing25-06.pdf
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SYNT m o d u l a r · l a b o r a t o r y · p r o g r a m · i n · publisher: H. A. Neidig c h e m i s t r y 738 organic editor: Joe Jeffers Copper-Catalyzed Oxidation of Benzoin to Benzil prepared by Carl T. Wigal‚ Lebanon Valley College PURPOSE OF THE EXPERIMENT Oxidize benzoin to benzil using ammonium nitrate and copper(II) ion as a catalyst‚ monitoring the reaction by thin-layer chromatography. Characterize the product using melting point measurement and infrared spectroscopy. EXPERIMENTAL
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amount number of mL of NaOH needed to react with the sulphate solution. Then add 5 mL at a time NaOH until Cu(OH)2 precipitate does not form. Record the correct number off mL which forms to NaOH solution. Fold the filter paper and stick inside the funnel‚ and pour the solution of copper (II) hydroxide through the filter. The purpose of this experiment is to determine the yield of copper (II) sulphate reaction. Reagent preparation: 0.5 mol/L = mol/0.1L 0.5 (0.1L)=mol mol = 0.05 0.05
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Aim To prepare a sample of cuprammonium rayon threads from filter paper Apparatus Required a) Conical flask (preferably 250 ml) b) Funnel c) Glass rod d) Beaker (preferably 250 ml) e) Water bath f) Filter paper (Whatman paper or ordinary filter paper sheets. Preferably‚ Whatman) Chemicals Required a) CuSO4 b) NaOH solution c) Liquor ammonia solution d) Dilute H2SO4 e) Whatman Paper f) Distilled H2O Background Rayon is a synthetic
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