precipitate reaction results in less grams desired amount (2 grams) Abstract: The objective of this experiment was to synthesize 2.00 grams of CaCo2 for a hypothetical manufacturing company using the two least detrimental (in regards to health and the environment) and least expensive chemicals possible through a precipitate reaction. A precipitate reaction happens when cations and anions of certain aqueous solutions react and combine forming a precipitate‚ which is an insoluble ionic solid. In this
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| [Solubility Product Constant] | Experiment 11 | | Molly McCabe | 4/18/2013 | | Data Tables: Part 1 and Part 2 Experimental Data: Standard | Calculated volume of copper sulfate in standards | Absorbance values | Blank | 0.0 mL | 0.0 | 1 | 1.25 mL | 0.094 | 2 | 3.75 mL | 0.065 | 3 | 2.50 mL | 0.099 | 4 | 3.50 mL | 0.129 | 5 | 5.00 mL | 0.187 | Collected Data | Test tube 1 | Test tube 2 | Test tube 3 | Test tube 4 | Test Tube 5 | Initial volume (mL) | 0.05
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Don’t Let Credit Cards Rule Your Life Did you know that the average credit-card holder in this country has ten cards‚ and the average family owes over $7‚500? That’s a record. And did you know that one dollar of every three in consumer debt is in credit cards? The fact is‚ credit card debt is rising faster than Americans’ income‚ and more folks are falling behind in their payments. So today I’m going to look at: why credit cards are a problem‚ and what you can do
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Compare and contrast one laboratory and one field experiment. A laboratory experiment is where research is done in a highly controlled environment‚ where the level of control is very important. It is also to examine the validity of the hypotheses. It is an investigation where one or more variables would be changed under these controlled circumstances so that research can be done on the affects of these alterations. A field experiment is a study conducted in a naturally-occurring environment. It
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INVESTIGATE FACTORS INFLUENCING THE SOLUBILITY OF SALTS Research question How does temperature affect the dissolving time of various salts.? Hypothesis I predict that with water of high temperature the salts will dissolve quicker. Controlled Variable Amount of water (solvent) Amount of salt used (solute) Type of cups taken and their sizes Independent variable Temperature of water Dependent variable Time taken for each salt to dissolve Material Required Measuring
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RESULTS AND DISCUSSION In the Iron (II) - Silver Ions System the reaction had a balance chemical equation of Fe2+ + Ag+ Fe3+ + Ag(S). The process if centrifugation is used in this part of the experiment to be able to separate the supernatant and the precipitate. And the supernatant will be used to test for the presence of Fe2+‚ Ag+ and Fe3+ in the solution. Results showed that there is a positive presence for FE 2+‚ Fe3+ and Ag+ because of the visible change of color of Prussian blue precipitate
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ACHARYA GIRISH CHNADRA BOSE COLLEGE 35‚ R.C.Sarani‚ Kol.-700 009 Accredited by NAAC with Grade ’B’ 1st Provisonal Merit List for B.A.(Hons.) in English - General Category Admission Date:30th June‚1st and 2nd July‚2014 SL. NO. Form No Candidate’s Name DOB Board Roll No yop 5475080 English Marks BS4. T. TOTAL 1 4A14/158 SHANKHADEEP DEY 31-03-1996 ISC 2014 English 88 370 458 2 4A14/131 DHRUBAJYOTI MAITRA 02-06-1996 WBCHSE 4602110046 2014 English 77 363 440 3 4A14/47 SOUMI SARKAR
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While Wendell Berry’s essay is certainly thought-provoking‚ it was to a certain degree frustrating to read for me because I perceived it as a perfect example of good environmentalist intentions and a legitimate desire of finding alternatives to our unsustainable system which ultimately lead to an oversimplified and irrational utopian vision to be realized by pursuing just one path which shows esoteric traits. Berry’s idol is localism. Surely‚ local economic structures are vital to environmentalist
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Ptlls assignments if you need a different one. Level 3 – Explain how you could promote inclusion‚ equality and diversity with your current/future learners. Identify other points of referral available to meet the potential needs of learners. Recommended word count 200-300 words. Level 4 – Discuss issues of equality and diversity and ways to promote inclusion with your learners. Review other points of referral available to meet the potential needs of learners. Recommended word count 300-400 words
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systematic naming system. This naming system‚ aside from organization also provides the reader with information about the given element. There are different kinds of compounds‚ ionic‚ covalent‚ and acidic and over all of this the atoms making up the compounds are either binary or polyatomic. The simplest compounds to name are binary ionic compounds‚ for example NaCl‚ which is named Sodium Chloride. Na having a positive oxidation number goes first followed by Cl which having a negative oxidation number goes
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