adding an additional absolute ethanol (2mls). The solution was refluxed for 40 minutes and was removed from the heating plate. Distilled water (30mls) was added to the solution. Sodium bicarbonate (60mls) was added dropwise until the pH was approximately 8. The pH was monitored using pH paper. Adding sodium bicarbonate caused a precipitate of benzocaine to form. The precipitate was filtered out of the solution using vacuum filtration. The precipitate was allowed to dry for recrystallization. The
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Oxygen‚ my hypothesis is a Combustion. E.) Lead (II) Nitrate and Potassium Iodide‚ my hypothesis a Double displacement. F.) Copper and oxygen‚ my hypothesis is a synthesis. G Magnesium and oxygen‚ my hypothesis is a synthesis. H.) Acetic acid and Sodium bicarbonate‚ my hypothesis is a double displacement. I.) Copper (II) carbonate and Hydrochloric acid‚ my hypothesis is a double displacement. Data: Attached. Conclusion: Experiment A. Aluminum and Copper (II) Chloride. In this experiment I filled
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Anhydrous sodium sulfate was added to the filtered organic solution to absorb excess water. Although water has a higher affinity towards sodium sulfate than cyclohexanol‚ excess anhydrous sodium sulfate may lead to the absorption of cyclohexane and thus loss of product. Anhydrous sodium sulfate absorbs water due to its polarity and therefore may also absorb cyclohexanol because of its polar O-H bond. If too much anhydrous sodium sulfate was added to the solution‚ part of the product would be absorbed
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Beaker 0.5 g Sodium Bicarbonate (baking soda)‚ NaHCO3 (1) 10 mL Graduated Cylinder 2 Weigh Boats (1) 100 mL Graduated Cylinder *Water 8 Litmus Test Strips (Neutral) Permanent Marker *You Must Provide Procedure 1. Use the permanent marker to label two of the weigh boats as A and C. 2. Use the permanent marker to label a 250 mL beaker B. 3. Set the containers in the order A‚ B‚ and C. 4. Measure and pour approximately 5 mL of water into weigh boat “A”. 5. Add 0.5 g sodium bicarbonate to beaker
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a condition whereby the gastric acid returns in greater concentration after the drug effect has ceased. Moreover‚ this class of antacids is not suitable for all patients owing to its components. For example‚ the usually high concentration of sodium bicarbonate present in these chemical antacids may be inappropriate for patients afflicted with hypertension or kidney failure. Non Absorbable Antacids The non-absorbable antacids though less prone to cause a rebound effect‚ have their fair share
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sucrose obtained by subtracting form the weight of sample bag and filter paper. 2. Separation of Aspirin Transfer the filtrate form the separation of sucrose to 100ml separating funnel and extract it with two 30ml portions of 5% sodium bicarbonate solution to form sodium acetyl salycilate which
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intestines. Common Name: Baking Soda Scientific Name: Sodium Bicarbonate Formula: NaHCO3 Fundamental particles: Baking Soda is comprised of one Sodium ion (Na+) and one Bicarbonate ion (HCO3-) Usage: Baking Soda has many uses; it can be used in cooking as well as cleaning‚ as an antacid and can also be used to fight odors. Properties: Baking Soda is odorless and can be used as an antacid because of the Bicarbonate ion. Common Name: Antacids Scientific Name:
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products for consumers 25% of outstand stock shares are family owned with the ability to stay focused Ability to acquire 2 companies in 2001 for growth (economies of scale) Arm & Hammer brand recognition 2002 Church & Dwight held 75% of the sodium bicarbonate production WEAKNESSES Until 1990 the company focused on niche markets to avoid competition Limited international marketing experience Line extension problems‚ saturating the market with logo branding OPPORTUNITIES Consumer market barriers
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Chemical Reactions- Sodium Hydroxide A chemical reaction is a change where two or more substances are changed into a new substance. You can identify a chemical reaction by colour change‚ effervescence (bubbles)‚ when light or heat given off‚ and the change is usually irreversible. There are 6 main types of chemical reactions- combustion (often called burning)‚ synthesis‚ decomposition‚ neutralization‚ single replacement and double replacement. A combustion reaction is a reaction with oxygen‚ and
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removed by extraction with aqueous sodium bicarbonate. The ester is purified by distillation 4.APPARATUS AND REAGENTS: 1. Isopenthyl alcohol(also called isoamyl alcohol or 3-methyl-1- buthanol) 2. Glacial acetic acid 3. Concentrated sulphuric acid 4. Round bottom flask 5. Reflux apparatus 6. Heating mantle 7. Cold water 8. Conical flask 9. Aqueous sodium bicarbonate 10. Red litmus paper 4.APPARATUS AND REAGENTS: 11. Saturated aqueous sodium chloride 12. Anhydrous
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