"Determine calcium carbonate in eggshell" Essays and Research Papers

Sort By:
Satisfactory Essays
Good Essays
Better Essays
Powerful Essays
Best Essays
Page 38 of 50 - About 500 Essays
  • Satisfactory Essays

    CHEM INVESTIGATIVE PRJECT

    • 322 Words
    • 2 Pages

    that Andrews 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.

    Premium Carbon dioxide Calcium carbonate Chlorine

    • 322 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    CONCLUSION After many class lab days‚ I concluded my unknown was Calcium Carbonate due to results from the Flame Test and Anion I Test. Throughout our lab days‚ my friends would help me determine various odors and colors of the substances which allowed me to confirm my answer. Also‚ I looked select test results up on the internet to see if they matched my observations. On our first lab day‚ I received my bottle and noticed a white precipitate in the bottom therefore‚ my unknown was insoluble. I

    Premium Chemistry Potassium Ion

    • 734 Words
    • 3 Pages
    Good Essays
  • Good Essays

    dish and Na2CO3 .72_g Net mass of the Na2CO3 .12_g Step 6: Mass of filter paper __1.0__g Step 10: Mass of filter paper and dry calcium carbonate __1.8__g Net mass of the dry calcium carbonate __.8__g (This is the actual yield) Step 11: Show the calculation of the theoretical yield of calcium carbonate. .0068 mol of CaCO3 *100.06 g CaCO3/1mol of CaCO3 =.6804 g of CaCO3 Show the calculation of the percent yield. (Actual yield/theoretical

    Premium Stoichiometry Sodium bicarbonate Yield

    • 435 Words
    • 2 Pages
    Good Essays
  • Better Essays

    Pulverized chalk (Calcium carbonate) mixed with black pepper powder (Piper nigrum) as cockroach repellent Acknowledgement: After the long run of making this research study‚ finally the researchers finished their work successfully. It is because of the numerous individuals advises‚ generous assistance and invaluable help. The researchers would like to convey their heartfelt gratitude and appreciations: Foremost‚ to our almighty and powerful God who gave us the heavenly knowledge and wisdom

    Premium Black pepper Spice

    • 2538 Words
    • 11 Pages
    Better Essays
  • Powerful Essays

    Technology Research 2 March 2013 ABSTRACT This study aimed to determine the permanent water hardness in terms of calcium carbonate concentration of water samples from the Boys’ dormitory‚ Administration Building‚ Gymnasium‚ Girls’ dormitory‚ and Canteen of PSHS-IRC together with the commercial drinking water Nature Spring‚ Absolute‚ and Wilkins through indirect titration. Water hardness was identified by the amount of calcium carbonate (CaCO3) in ppm. The control group consisting of the branded commercialized

    Premium Hard water Water Calcium carbonate

    • 4755 Words
    • 20 Pages
    Powerful Essays
  • Powerful Essays

    and Na2CO3 __1.4__g Net mass of the Na2CO3 __0.7__g Step 6: Mass of filter paper __0.7__g Step 10: Mass of filter paper and dry calcium carbonate __1.2__g Net mass of the dry calcium carbonate _0.5___g (This is the actual yield) Step 11: Show the calculation of the theoretical yield of calcium carbonate. The mole ration between CaCl2-.2H2O and CaCO3 is 1:1 that means that if we have 0.00680 moles of CaCl2-.2H2O we will get 0.00680 moles CaCO3 Convert

    Premium Stoichiometry Solubility Calcium carbonate

    • 567 Words
    • 3 Pages
    Powerful Essays
  • Good Essays

    Hardness of Water from a Waterfall Aim: To determine the molarity of EDTA and to determine the hardness of water by measuring the concentrations of calcium and magnesium in a water sample by titration. Abstract: The aim of this experiment was to determine the molarity of a sample of EDTA and then to use this sample to determine the hardness of a sample of water. This was done using a titrimetric method. This was standardized using calcium chloride. The calcium chloride was weighed‚ dissolved and diluted

    Premium Calcium Calcium carbonate Water

    • 1620 Words
    • 7 Pages
    Good Essays
  • Good Essays

    A Heartburn Remedy

    • 4416 Words
    • 18 Pages

    What is heartburn and when does it occur? Heartburn occurs when hydrochloric acid‚ which is used to digest food in the stomach‚ backs up into the oesophagus causing an irritation. Normally the oesophageal sphincter would close tightly‚ not allowing the acid to back up. If this valve‚ however‚ is not functioning‚ the acid can slip by. Occasionally heartburn can be associated with hiatus hernias. Describe how the heart remedy works‚ including a description of what a neutralisation reaction is

    Premium Calcium carbonate Magnesium Calcium

    • 4416 Words
    • 18 Pages
    Good Essays
  • Good Essays

    Based on the Contracts Act 1950‚ there are four ways to discharge a contract. The methods are performance‚ agreement‚ breach and frustration. Performance The general rule of performance defines that the performance must be strictly in accordance with the terms of the contract unless the parties have agreed otherwise. A promisor must be prepared to carry out his obligation at the time and place at which he has agreed to do so. Agreement A contract can be discharge by consent‚ under Section

    Premium Contract Breach of contract Contract law

    • 1141 Words
    • 5 Pages
    Good Essays
  • Good Essays

    Stoichiometry Lab

    • 551 Words
    • 3 Pages

    reaction of sodium carbonate and calcium chloride dihydrate to produce a precipitate of calcium carbonate. This formula is: Na2CO3(aq) + CaCl2. 2H2O(aq) à CaCO3(s) + 2NaCl(aq) + 2H2O 1. Put on your goggles. 2. Weigh out 1.0 g of CaCl2·2H2O and put it into the 100-mL beaker. Add 25 mL of distilled water and stir to form the calcium chloride solution. Use only distilled water since tap water may have impurities that interfere with the experiment. 3. Use stoichiometry to determine how much Na2CO3

    Premium Stoichiometry Sodium chloride Calcium

    • 551 Words
    • 3 Pages
    Good Essays
Page 1 35 36 37 38 39 40 41 42 50