the effect of dilution on the solution’s absorbance Materials: Copper Sulfate Coloured solution – Potassium Manganate (KMnO4) Hotplate Method: Part A: The Formula of Hydrated Copper (II) Sulfate Firstly‚ about 1.0 g of hydrated copper (II) sulfate was put in the weighing bottle and the colour was noted. The mass of capped weighing bottle and hydrated copper (II) sulfate in it were measured and recorded. Then‚ the copper (II) sulfate was transferred into a casserole and the mass of the
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the offer of picking up a penny off the floor? Well you made a great choice. For the past couple years there has been a huge debate over the ban of pennies. Some people feel as if the penny is useless to our currency‚ but some others felt that the penny plays a huge role in the U.S today. The argument today is whether the ban of pennies is going to boost our economy or plummet it. The penny should be eliminated because of the cost‚ worth‚ and rounding system. The penny to me has never been a huge
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examine the extent to which the temperature and presence of common ions affect the amount of copper sulphate salt that can dissolve in 100 grams of water until it reaches saturation. In order to achieve the aims of this experiment‚ a methodical approach is taken to measure solubility of the salt at three different temperatures and then construct a solubility curve for copper sulphate. Additionally‚ copper sulphate is reacted with sodium hydroxide to investigate further the effect of common ions on
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of the news of savages causing trouble everywhere Jamie received a copper flute as a gift from overseas Jamie sees a spiral of smoke coming from the hills Jamie finds his pet seal shot Chapter 4 Jamie clamours over rocks to find Robert because he was out with Andrew hunting Jamie sees a snow goose and follows it into the woods Jamie meets a native boy by a creek Jamie gives the boy his copper flute; the boy gives Jamie his copper necklace and a salmon Chapter 5 Jamie returns to town and finds everyone
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Chemical Earth. 1. What is the systematic name for a compound with the formula Cu2SO4? (A) (B) (C) (D) 3. In which compound do all atoms have the same electronic configuration? (A) (B) (C) (D) 4. Copper sulfide Copper (I) sulfate Copper (II) sulfate Copper disulfate LiF NaCl MgF2 NCl3 Identify the property which decreases across each row of the Periodic Table. (A) (B) (C) (D) Melting point Ionisation energy Valency Atomic radius 11. Which is correct
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I believe that Copper Sun should be taught to future generations because it is an inspirational and informational novel. This novel instructs us about a dark time in our history‚ and how if we want it not to repeat itself‚ we should advice future generations to prevent that from happening again. Copper Sun is an exceptional good read. The book teaches us multiple lessons about how you should always persevere through the difficult times just like the two main characters in the book‚ Polly and Amari
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‘’Copper sun by Sharon M Draper is a literary masterpiece that depicts the horrors of salary is told through the eyes of amari‚ a fifteen year old african from the Ewe tribe‚Amairi and her family lived in a village of ziavi‚untroubled‚and kind village but one day unexpected visitors described an strange milk faced men turned the village into a living nightmare with the help of the Ewe people trusted all the ashanti‚manny was slaughtered including the village chief‚amiri parents and siblings‚and most
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The penny‚ the smallest coin in the U.S.‚ that honors president Abraham Lincoln‚ is now essentially worthless. Back not too long ago‚ it was possible to go the store and get a whole bag of candy for a nickel‚ or a chocolate bar for a penny. But now that is no longer possible. Nowadays the price of everything is much higher than it used to be‚ which means that small amounts don’t go as far. As source C explained‚ there used to be penny-poker‚ penny candy‚ and five and dime stores. Now‚ penny poker
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1 Determination of Empirical Formula: Preparation of a Copper Sulphide. Aim The aim of the experiment was to determine the empirical formula of sulphide of copper and to make sure that an amount of copper metal reacted with elemental sulphur‚ Eq. 1. To be able to calculate the empirical formula of copper sulphide‚ the mass (grams) of copper has to be known and the mass (grams) of copper sulphide after the reaction. Copper‚ chemical formula Cu‚ is a known metal with a red-brown
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4. Impact a. What has been the impact of their new strategy on their stock prices? JC Penny has cost a lot of money to make its strategy work and the increasing costs of the company have let down their stock prices. The retailer reported a second-quarter loss of $147 million and sales slide 23% to $3 billion according to data compiled by Bloomberg. So the retailer and stores have been losing sales and consumers‚ so the losing on their profits has been letting down their stock prices as well
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