Sarah Muhs ID: 11325862 Nitration of Methyl Benzoate Post Lab: 1. Is the ester group of your starting material electron donating or withdrawing? Support your conclusion with resonance drawings. The ester group‚ CO2CH3‚ of the starting material was electron withdrawing. 2. Draw the mechanism of the nitronium ion reaction with the methylbenzoate. 3. Why does water stop the reaction? Water stops the reaction because of Le Châtlier’s principle. Since water is a product‚ when more is added it drives
Premium Sulfuric acid Nitric acid Water
Stir the reaction mixture for a few minutes. 10. Obtain a piece of filter paper‚ determine its mass. (Record mass) 11. Set up the apparatus (funnel‚ ring stand‚ filter paper) for filtration while the precipitate in the beaker settles. 12. Place the empty beaker under the funnel and transfer the reaction mixture to the filter paper. (Careful! Do not allow reaction mixture to rise above the rim of the filter paper) 13. Add approximately 10 mL of distilled water
Premium Chemistry Chemical reaction Chlorine
labels Beaker (400 ml) Ice bath 25 test tubes Funnel Cheese cloth Milk Thermometer Tube rack Stopwatch Procedure: 5 test tubes should be taken and measured with 20ml of milk in each Then place half a rennin tablet in each 20ml of milk Thermometer should be placed into all the test tubes to record when they hit the desired temp Then place to heat in water bath‚ ice bath‚ or room temp each for a minute Strain by using the funnel and cheesecloth placed on top so you get an accurate
Premium Temperature Enzyme Gas
structure of research article is an hour-glass symmetry the business report‚ in general‚ has the shape of a funnel. The hour-glass symmetry means that scientific report tries to identify a gap in existing research and fill it before broadening out again to make generalizations and conclusions based on the findings. This makes the scientific report more theoretical comparing to business report. The funnel shape in business report means that instead of making generalizations and conclusions the goal of business
Premium Report Difference Scientific method
Propelling a Rocket with Baking Soda and Vinegar Materials: * Vinegar * Baking Soda * Paper Towel * Funnel * Cork * In rocket: (instead of film canister) * Plastic Bottle * Pencils(stand) * Duct tape Procedures: 1. Take 1 scoop of baking soda 2. Put it in the middle of the paper towel‚ and then roll it. 3. Put the funnel in the mouth of the bottle‚ and pour vinegar before the duct tape.(it’s up to you) 4. Fix the cork‚ put some paper towel
Premium Carbon dioxide Oxygen Acetic acid
two and filter each using a large Buchner funnel into a 500-mL filter flask. Use additional filter flasks and Buchner funnels as necessary and change the filter paper in the funnel when filtration slows due to clogging. You may need to add excess water to remove all of the spinach remnants from the blender. 3. Meanwhile‚ prepare 375 mL of petroleum ether/acetone solution in a ratio of 8:2. Pour about 300 mL of this solution into a 1000 mL separatory funnel along with an equal amount of the filtered
Premium Chlorophyll Photosynthesis Chromatography
As a woman ages‚ she realizes that her breasts do not look or feel the way they did when she was younger: However‚ these lost characteristics can be recaptured through a breast lift with augmentation procedure near Queens. Dr. Nina S. Naidu is a top female board-certified plastic and reconstructive surgeon in NYC who performs breast enhancement procedures on a regular basis. What Causes the Breasts to Change? The breasts change for a variety of reasons. These reasons include: Weight loss
Premium Breast Plastic surgery
Really torrential thunderstorm 60 mms in two hours Really tall convectional clouds The remnants of Hurricane Alex Valley shape Really steep sided deep valleys of the R. Valency and the R. Jordan The valleys funnel the water down towards Boscastle Small ‘flashy’ catchments that funnel water into rivers quickly. 23 sq. km. Rivers run off the high ground of Bodmin Moor (relief rainfall) Geology Impermeable rocks (slates and granite) and clay soils Human Boscastle built beside the sea on a
Free Flood Water River
disaccharide whose structure is in your textbook) is broken down to two monosaccharides‚ glucose and fructose. These monosaccharides are then converted into ethanol and carbon dioxide. * Materials 250-mL Erlenmeyer flask 250-mL Beaker Bruchner funnel Fermentation apparatus Distillation apparatus Vacuum filtration assembly Water Sucrose Potassium phosphate Celite Disodium hydrogen phosphate Dried baker’s yeast * * Procedure Part I Place 20.0 g of sucrose into a 250-mL Erlenmeyer
Premium Ethanol Glucose Carbon dioxide
balance and record‚ repeat until the mass no longer decreases. 4. Add crucible contents to a beaker then add 200 mL water and 125 mL of solution and stir. 5. Position filter paper in the funnel‚ drain water into another beaker. 6. Transfer the precipitated material to the flask‚ allow the funnel to drain. 7. Use a microspatula to school the material and set in the drying oven‚ allow it to cool. 8. Weigh and record the mass of the filter paper‚ repeat until the mass does not change
Premium Solubility Laboratory equipment Filter paper