Elizabeth Lab Partners: Hannah Signature:___________________ Introduction- Baking soda and vinegar are two common materials found in almost every household. That‚ plus the fact that all the starting and finishing materials are non hazardous and safe‚ is why this is one of the first chemical reactions that many people are exposed to The purpose of this experiment tests which of the two reactants (vinegar and baking soda) is the limited reactants. It is hypothesized that the limited reactant of this
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INTRODUCTION Differences between acids and bases An acid-base reaction is based on the reaction involving the ionization of water H2O -> H+ + OH- This means that water can break apart into a hydrogen ion and a hydroxide ion. These two ions can also join together to form a water molecule. When a strong acid is placed in water‚ it will ionize completely‚ and break down into its constituent ions in which one of it a hydrogen ion. When a strong base is placed in water‚ it will ionize
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50 ideal/Ways to Save the Planet 1. CHANGE YOUR LIGHT If every household in the United State replaced one regular light bulb with one of those new compact fluorescent bulbs‚ the pollution reduction would be equivalent to removing one million cars from the road. Don’t like the color of light? Use these bulbs for closets‚ laundry rooms and other places where it won’t irk you as much. 2. TURN OFF COMPUTERS AT NIGHT By turning off your computer instead of leaving it in sleep mode‚ you can save 40 watthours
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Chapter I THE PROBLEM Introduction Rubber is an elastic hydrocarbon polymer which occurs as a milky emulsion (known as latex) in the sap of a number of plants but can also be produced synthetically. The major commercial source of the latex used to create rubber is the Para rubber tree‚ Hevea brasiliensis (Euphorbiaceae). This is largely because it responds to wounding by producing more latex. Other plants containing latex include figs‚ euphorbias and the common dandelion
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present in commercial vinegar and the weight-to-volume percent of ammonia present in window cleaners. Acid-base titrations can be conducted using the above samples against standardized aqueous NaOH and standardized aqueous HCl solutions respectively. 2. Introduction: Acetic acid‚ commonly known as ethanoic acid CH3COOH‚ is found in commercial vinegar. It is a weak organic acid that gives vinegar its characteristic pungent smell‚ sour taste and slight acidity. Being an acid‚ vinegar is used as a mild
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Observations of Chemical Changes Lab Report Expectations: Data Table 1: What you Expected to happen Well #/ Question Chemicals Reaction A NaHCO3 and HCI - C02 A bubble occurrence B HCI and BTB A deep yellow C NH3 and BTB A purple color D HCI and blue dye A deep blue E Blue dye and NaOCI A greenish color F NaOCI and KI A bright red G KI and Pb(NO3)2
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environment Robin Glenn September 28‚ 2014 Abstract The lab was conducted at the McBride residence. For this experiment vegetable oil‚ vinegar and liquid detergent was use to contaminate the water. Testing of how ground water is affected by different contaminants was the bases of the experiment. The results were interesting in that when vinegar is filtered through dirt it came out fairly clean‚ it also changed the scent. This shows that maybe we can find a way to find a safer choice on
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stamp in you‚ then you can really save a lot. 2. All kinds of vinegar. If you want it sour‚ then you can definitely use your food stamp to purchase all kinds of vinegars that you want. This particular grocery item is also useful in many things aside from adding flavor to the food that you eat. Whether you know this or not‚ vinegars can be used to clean floors‚ windows‚ your bathroom‚ and even use in your pet’s hygiene. In addition‚ a vinegar is also useful for your laundry stains. Or if you have some
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I. Introduction The purpose of this experiment is to determine the pH values of acids‚ bases‚ and buffers of distilled water and 10.0 buffer using measured concentrations of Sodium hydroxide (NaOH) and/or Hydrochloric acid (HCl). Acid is a compound typically having a bitter taste and capable of nullifying alkalis and releases hydrogen ion when added to a solution‚ or containing an atom that can accept a pair of electrons from a base (McKinley‚ Dean O’Loughlin‚ & Stouter Bidle‚ 2016). Bases are water-soluble
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reaching completion. As you can see from the graph‚ there’s a very small range between the equivalence point and the end point. As such reaching the equivalence point is very difficult to achieve. In this experiment we are titrating “no frills” vinegar with a standardized solution of sodium hydroxide. It is essential that all glassware is properly cleaned and sterilize to acquire accurate results as any contamination may result in inaccurate results. The burette is washed with the titrate as to
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