Aim: To find the solubility and the solubility product of calcium hydroxide. Theory: Define‚ with equation‚ the solubility product. Find‚ from literature‚ the solubility product of calcium hydroxide at 25oC. Experimental: Reagents: solid calcium hydroxide‚ water‚ 0.1 moldm-3 hydrochloric acid Apparatus: Procedure: 1. An empty bottle was weighed. Then the empty bottle was weigh with 1g calcium hydroxide. 2. 100 cm3 of distilled water was added to the bottle. For about
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salts when used. AIM: To determine the effectiveness of Calcium Carbonate and Sodium Carbonate when used to treat heartburns. APPARATUS: Measuring Cylinder‚ Beakers‚ Spatula‚ Conical Flask‚ Measuring Scale‚ Funnel‚ Dilute HCL‚ Calcium Carbonate (Present in Tums)‚ Sodium Carbonate (Present in Andrews Salts)‚ Petri Dish‚ Rubber Stopper‚ Gas Syringe METHOD: 1. Wash all apparatus. 2. Measure and transfer 5g Calcium Carbonate to Petri Dish. 3. Measure
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combined with calcium carbonate. In this lab‚ we will use vinegar for its acetic acid and egg shells for their calcium carbonate. Marketable vinegar differs in its acetic acid concentration from 4-6%. Calcium carbonate reacts with the acetic acid in vinegar to produce carbon dioxide‚ water‚ and calcium acetate as represented by the equation: CaCO3 + 2HC2H3O2 CO2 + H2O + Ca(C2H3O2)2. The calcium carbonate reacts with the acetic acid in a 1:2 ratio. Therefore‚ for every one mole of calcium carbonate
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Determine the Enthalpy Change of a Reaction Background Calcium Carbonate‚ CaCO₃‚ decomposes with heat to form CaO and CO₂. The objective of this practical was to determine the enthalpy change for this reaction by using an indirect method based upon the foundation of Hess’ Law. Both calcium oxide and calcium carbonate react readily with 2 mol/dm3. The reaction can be demonstrated as so: CaCO₃ (s) -> CaO(s) + CO₂ (g) Results: Raw Data Calcium Carbonate Mass of CaCO₃ + Weighing Bottle (in grams)
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Usually‚ this part of the egg is thrown away after the eggwhite and yolk are taken from it and used. Although‚ there are some who used eggshells as ornaments‚ they are few‚ and this practice is not common. Study shows that the eggshell contains calcium carbonate - a form of limestone that can be converted to chalk – that material that we use in writing on the blackboards. The purpose of this research is to produce a chalk that is non-toxic and therefore safe for school children‚ teachers‚ and
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Rate of reaction Design Lab Background: Reaction rate is most commonly defined as the speed at which a reaction takes place. This rate can be altered by many factors such as temperature‚ pressure‚ concentration‚ volume‚ or the use of a catalyst. In order for a reaction to occur‚ the atoms must collide in the correct orientation to break the bonds and must also have more energy than the needed activation energy. If their energy is not high enough‚ the reaction will not be able to take place. By
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more durable and long lasting chalk. Until they found out that seashells is made up of calcium carbonate that can also be found in chalk. The term seashells usually refer to the exoskeleton of invertebrate animals. Most seashells are commonly found at the beaches but in a variety of habitats it is also possible to find shells from freshwater animals. But what was known in these animals they are made up of calcium carbonate. It will now be easy for the less fortunate country or people
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The poem harmonium examines the relationship of a father and son. I think Armitage has written this poem for parents and children as they would be able to relate to the emotions in the poem. The Author uses the Farrand Chappelette which is a type of Harmonium or small organ to help him reflect the love that he has for his father. In the first stanza the poet talks about the Farrand Chappelette which was “gathering dust” telling us that it is getting old and it was due to be taken to the skip if Armitage
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From the table it was found that the calcium oxalate content in fresh tuber were 0.14% in elephant foot yam‚ in karunai kizhangu 0.25% and in taro 0.20 percent respectively. The processed (soaking the tubers in citric acid followed by blanching‚ drying & roasting) tuber flour was subjected to determine the presence of calcium oxalate. It was found that elephant foot yam flour had 0.05%‚ karunai kizhangu flour contained 0.09% and in taro flour had 0.08 percent calcium oxalate. The reduction in acridity
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Hypothesis Every time more heat is added to the element‚ CaCO3‚ thermal decomposition will take place faster because the heat is a catalyst which speeds up the reaction. Variables Dependent Variables → Mass of Calcium Carbonate Independent Variables → Temperature Controlled Variables → Calcium Carbonate What? How? Why? IV Temperature Use the same temperature for each trial. To make the experiment more accurate. DV Change in mass of CaCO3 upon heating Using a mass balance accurate
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