Determining Percent of Water Crystallization and the Chemical Formula of a Hydrate Aim: To determine the percent water of crystallization and the chemical formula of a hydrate Materials * 400 ML beaker * Glass rod * 3 to 5 grams of hydrated copper (II) sulfate CuSO4 (crushed) * Bunsen burner * Spatula * Heating pad * Clamp and stand * Electronic balance Procedures Refer to Lab sheet Observations 1. The powder seems to be very bright and shiny before any heating 2. The blue
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A Study to Determine the Level of Iron and Copper in Kuala Terengganu Estuary Muhammad Ali Azraei Bin Raduan ( UK32844 ) Lecturer Dr. Kesaven a/l Bhubalan Introduction : Kuala Terengganu River estuary (5.32°-5.35°N‚ 102.95°-103.15°E) is situated on the east coast of peninsular Malaysia facing the South China Sea (figure 1). Generally‚ the Kuala Terengganu River estuary is relatively small and shallow. The total area of the estuary is approximately 8 km2
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2/21/13 The Hindu : Today’s Paper / NATIONAL : Ancient copper plates‚ gold coins found in Karnataka temple Today’s Paper » NATIONAL Ancient copper plates‚ gold coins found in Karnataka temple T.S. Subramanian A set of copper-plate charters and a bull emblem engraved on one such plate‚ issued by Sankama-II of the Kalachurya dynasty in March 1180 CE. On the right is a ‘Ane Gadyana’ variety gold coin. Of the eight such coins discovered‚ three were issued by Ganga ruler Sivamara-I (regnal
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Tiffany Yuen Investigation 21: How Much Copper Is in the Coin? RC Bauer‚ JP Birk‚ DJ Sawyer We calibrated three different molarities of copper (II) nitrate. We tested for the %Transmittance of 1M‚ 0.1M‚ and 0.01M and plotted the data collected on a calibration curve based on concentration and absorbance. We used nitric acid to dissolve a penny to produce another copper (II) nitrate to test its %Transmittance and plot that on the graph to discover the concentration of that substance which came
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The United States Mint’s website states that in 1962‚ the cent’s tin content was removed making the composition of the cent 95% copper and 5% zinc. In 1982‚ the composition was changed to 97.5% zinc and 2.5% copper (United States Mint). The U.S. Department of Treasury stated that “the manufacturing advantages to be gained with the alloy stabilized at 95 percent copper and 5 percent zinc would be of much benefit. Congressional authority for this modification is contained in an Act of Congress approved
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tube. In the fifth reaction‚ the two reactants‚ copper(II) chloride and zinc produced a permanent color change in the solid substance in the aqueous solution. The remaining solid appeared to be black reddish and concluded to be copper‚ where the aqueous solution is zinc chloride. The six reaction resulted in the formation of a precipitate in an aqueous solution. Copper(II) chloride reacted with sodium phosphate to produce a fluffy blue solid‚ copper(II)
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number of winds you think will produce the strongest electromagnet. Record your hypothesis as an if then statement. If I use copper‚ 100 volts‚ large thickness‚ and 100 winds‚ I will have the strongest electromagnet.  Review your data. Did your experiment prove or disprove your hypothesis? Explain your answer. It proved my hypothesis. The copper‚ 100 volts‚ large thickness‚ and more winds made the strongest electromagnet..What role does voltage play in the formation or use
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extract of Acalypha wilkesiana (Copper plant) Project Title (As redirected by the RDC) Project Intellectualization (Who‚ Where and When) 4th year Bachelor of Science in Pharmacy students in Our Lady of Fatima University on March 2014 Research Simulacrum (Bins and graphical hypothesizing) Research Arguments Ho+= There is no significant difference between the negative group and experimental group of the leaves extract of Acalypha wilkesiana (Copper plant). Ho+= There is no significant
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are the chemical formulas of the reactants for each reaction: • zinc – Zn copper sulfate – CuSO4 In well 1A there was a chemical reaction which turned the zinc black‚ while the copper sulfate was still blue. AX + B → A + BX Zn + CuSO4 → ZnSO4 +Cu • aluminum – Al copper sulfate – CuSO4 In well 2A there was no reaction between the aluminum and copper sulfate. The aluminum floated and there was no change in color‚ gas released‚ or precipitates
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ize of a mole of iron and copper. The result obtained in this lab usually have less than a one percent error. Fe(s) + CuSO4 (aq) > FeSO4(aq) + Cu(s) Iron powder cupric sulfate ferrous sulfate copper In the reaction‚ iron will be the limiting reagent; it will be completely used up in the reaction. Cupric sulfate will be in excess; not all of it will be used up in the reaction. The number of moles of iron that react will equal the number of moles of copper produced. The reaction indicates the
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