Chocolate Chip Cookies: A highly scientific chemical reaction of butter‚ sugar‚ eggs‚ vanilla‚ flour‚ baking soda‚ salt‚ and‚ of course‚ chocolate chips. The buttery‚ toffee notes of a perfect CCC is often considered the epitome of home baking‚ a simple yet reminiscing experience‚ taking many down a trip on memory lane. However‚ the classic chocolate chip recipe isn’t as “cookie cutter” as the back of the Nestle Morsel bag has you believe; there is actually a plethora of chemical reactions that take
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liquid soaps‚ shampoos and soft soaps because it produces soap of soft consistency and higher solubility in water. Other raw materials: * Builders These are essentially used to build up soaps. Examples of alkali builders are sodium carbonate‚ sodium silicate and sodium sulfate.
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Introduction to Fire Protection and Emergency Services THE CO2 FIRE EXTINGUISHER APPARATUS You wake to a strong smell of burnt wood‚ and your vision is blurred to the point you aren’t quite sure whether or not you are in a dream‚ or if this is truly happening to you. As you jump out of bed the floor feels warmer against your bare feet than normal and it hits you what is occurring- your home is on fire. You sprint to the door and feel the handle; it is cold to the touch so you swing
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BTEC Chemistry – Titration experiment I – Standard Solution Prep Preparation of a standard solution of sodium carbonate Anhydrous sodium carbonate is a suitable chemical (primary standard) for the preparation of a standard solution. Standard Solutions are critical in chemistry because you need to have solutions with an EXACT known concentration and volume. Chemicals/Materials: solid sodium carbonate (Na2CO3) distilled water Apparatus: 250cm3 volumetric flask 250cm3 beaker Glass
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Gracen Seiler April 7th‚ 2015 Section- 109 Investigating Stoichiometry with Sodium Salts of Carbonic Acid Introduction- This experiment is intended to help find a better understanding of chemical stoichiometry through titrations of NaHCO3 and NA2CO3 with HCl. A chemical reaction is a process that involves rearrangement of the molecular or ionic structure of a substance‚ as opposed to a change in physical form in a nuclear reaction. Titration is when a measured amount of
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Our objective for the Sherlock Holmes Experiment was to illustrate that some chemicals can be identified or differentiated by simple chemical tests‚ such as solubility‚ pH‚ or color tests. In our group we had to test come common powders such as Alka-Seltzer‚ baking soda‚ flour‚ Vitamin C (ascorbic acid)‚ and salt. Other chemicals that were used to do this experiment were vinegar‚ and Iodine 2 Solution. The equipment used to do this experiment was red litmus paper‚ and 5 test tubes per group.
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How reaction rate varies with sodium thiosulphate concentration Background information Sodium thiosulphate and hydrochloric acid are both colourless liquids‚ when the two reactants are reacted together they produce sulphur. The sulphur that is produced from the reaction changes the solution to yellow and cloudy‚ this is a precipitation reaction‚ where a two solutions react and a solid forms in the solution‚ the solid is said to precipitate out. Some reactions will occur quickly such as fireworks
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H2O. In the process‚ a salt is also formed. Neutralization reactions are generally classified as exothermic since heat is released into the surroundings. However‚ an example of endothermic neutralization is the reaction between baking soda (sodium bicarbonate) and vinegar (acetic acid) (or any other weak acid). Hydrochloric Magnesium Magnesium Carbon Acid +
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The next recipe indicates that nigrosene (generically‚ a black dye made from oxidised aniline) was domestically procurable in the 1940s. Note that the above recipe uses potassium carbonate (potash) whereas the following recipe uses potassium bicarbonate‚ which is not potash. Imperial Measures are in brackets.Home-made shoe polish Neutral Colour Shoe Polish To make a neutral-colour‚ home-made shoe polish‚ you would need: Soap flakes 30 g (1 oz) Potassium carbonate 15 g (0.5 oz) (Obtain
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acids and/or alkalis to treat them. Wasp sting venom is alkaline and so its effects can be neutralised with vinegar or acid and this neutralisation then reduces the pain‚ and Bee sting venom is acidic and so its effects can be neutralised with bicarbonate of soda or alkali and this reaction reduces the pain. If you get an acidic sting then Baking soda or other alkaline products such as cucumber‚ parsley‚ celery‚ lettuce or avocado. Take a small amount and rub gently and slowly onto the sting.
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