Preparation a standard solution of oxalic acid (~0.07 M) 2. Preparation a sodium hydroxide solution (~0.1M) which will be standardized using the standard oxalic acid solution. 3. Determination of the concentration of acetic acid in an unknown vinegar solution. (0.1-0.2M) Introduction Standard solutions are solutions with known concentrations‚ generally to four significant figures. There are two different ways to make a standard solution. We can make a primary or a secondary standard
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CHINA (Chinese Cuisine Lecture) by Bernadette Olivares December 10‚ 2012 CHINA Population: Ethnic groups: Han Chinese 91.5%‚ Zhuang‚ Manchu‚ Hui‚ Miao‚ Uyghur‚ Tujia‚ Yi‚ Mongol‚ Tibetan‚ Buyi‚ Dong‚ Yao‚ Korean‚ and other nationalities 8.5% (2000 census) Religions: Daoist (Taoist)‚ Buddhist‚ Christian 3%-4%‚ Muslim 1%-2% note: officially atheist (2002 est.) Languages: Standard Chinese or Mandarin (Putonghua‚ based on the Beijing dialect)‚ Yue (Cantonese)‚ Wu (Shanghainese)‚ Minbei
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Powdered Milk as Casein (Anacardium Occidentale) Used as Alternative Glue A Research Paper Submitted to the Faculty of Victorious Christian Montessori – Imus Block 11 Lot 36 Tacloban St. Southern City Tanzang Luma‚ Imus Cavite In Partial Fulfillment of The Requirements for Graduation (Grade School) Rachelle Ann Calaustro Dylan Andrei Paus March 2O13
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How to Help Sore Feet Soreness commonly occurs in the toes‚ heels‚ ankles‚ soles‚ or arches of the feet. This happens because of vigorous activities‚ such as shopping‚ sporting activities‚ yard work‚ or just a long day. Painful feet are especially common with age‚ but can also be caused by ill-fitting shoes and clothing that minimize blood circulation to the lower limbs. There are many natural remedies for how to help sore feet that you can try at home. Please add one picture (I’ll do this). Part
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1.0 Aim The purpose of this experiment is to use Volumetric Analysis to determine the concentration of acetic acid in white vinegar. 2.0 Theory The concentration is a measurement of relative amounts of solute and solvent. There are many diverse ways of expressing concentration but the most accepted and widely used is molar concentration and regularly referred to as molarity which is defined in mole‚ the amount of solute dissolved in one litre of solution. [pic] In this experiment there
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Beef Jerky and Hardtack the Nearly Perfect Survival Meal Foods that do not require any preparation‚ are lightweight‚ and are shelf stable make ideal foods for a survival pack or to have on hand for emergencies at home‚ at the office‚ or even when stranded in your vehicle. The best part is that you can make beef jerky and hardtack at home‚ and by no means do you need extensive cooking or food preparation skills. You have enough to worry about when you find yourself in a survival situation‚ so make
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that usually requires some activation energy‚ such as lighting it with a match. A gas is released: These are usually visible reactions because they will start to bubble. A safe and simple example of this is the reaction between baking soda and vinegar. These two chemicals (sodium bicarbonate and acetic acid) react and release carbon dioxide. A color change occurs: Combining chemicals can change the pigmentation that gives the chemicals color. A change in the pigments will cause the light to
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“NATURAL MOSQUITO REPELLENT” I. INTRODUCTION Mosquitoes can be unwelcome guest these rainy days and it is a major insect problem of people. Commercial repellents are harsh‚ have poisons that are not suitable for children and not always effective in repelling these pesky bugs. We don’t know what are the side effects of these repellents are. Some leaves‚ unripe fruit‚ and their seeds contain vermicidal and insectidal properties. It is an inexpensive alternative in avoiding mosquito that causes
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ink manufacture. The one drawback of gall-iron ink is that it is very corrosive to steel and you should ensure that the implements you use while making or using this ink are not made of steel. You will require tannic acid‚ distilled water (wine or vinegar can be substituted)‚ galls‚ solid gum arabic‚ and iron sulfate. The quantities required are 35 grams of tannic acid‚ 0.5 oz of gum arabic‚ 21 oz of iron sulfate‚ 8 oz of distilled water and galls. These can be gathered from woody areas where they
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Acid Rain Research Paper What is acid rain? Rain is one of the most dire and essential needs for a thriving ecosystem‚ and to sustain human‚ animal‚ and plant life. The water provided by the water cycle‚ the event causing rain‚ is required to keep all life on Earth alive. Rain‚ although naturally acidic‚ seems to have been increasing at a rapid rate due to many reasons. Some of these many reasons include‚ pollution. Pollution from homes‚ factories‚ power stations‚ cars‚ and many more
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