carbon dioxide to form sodium carbonate. c. Calcium metal reacts with water to form calcium hydroxide and hydrogen gas. d. Potassium nitrate decomposes to form potassium nitrite and oxygen. e. Barium metal reacts with Iron (III) sulfate to produce barium sulfate and iron metal. f. Barium chloride reacts with sodium sulfate to produce barium sulfate and sodium chloride. g. Bismuth (III) oxide and zinc metal react to produce zinc (II) oxide and bismuth metal. h. Calcium metal reacts with phosphorus
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Purpose To explore transport of materials in three semi-permeable membranes: dialysis tubing‚ eggs‚ and onion cells. Background Information 1. Diffusion is the movement of solutes from high to low concentration. Osmosis is the movement of water from low to high concentration. Both refer to movement in/out of a cell‚ but osmosis refers specifically to water. 2. Isotonic‚ hypertonic‚ and hypotonic all refer to the comparison of concentrations of solutes in verses out of the cell. Isotonic is
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Chemistry Experiment Double Indicator Titration 1 Aim The purpose of this experiment is to find the composition of a sample of sodium carbonate mixture by titration. Introduction The reaction between sodium carbonate and hydrochloric acid occurs in 2 stages‚ with the formation of hydrogen carbonate ion as the intermediate product. Na2CO3(aq) + HCl [pic] NaHCO3(aq) + NaCl(aq) NaHCO3(aq) + HCl(aq) [pic] NaCl(aq) + H2O(l) + CO2(g) [pic] Requirements Hydrochloric
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standard of known purity‚ the sodium carbonate. Standardization is the process in which the concentration of solution is accurately determined. A sample of sodium carbonate with 99.9% purity was dissolved in boiled water and titrated with HCl. Then‚ a sample of soda ash was dissolved in boiled water and then‚ titrated. In a this reaction of HCl with carbonate‚ the following reactions will take place: CO32- + H+ → HCO3- (2) HCO3- + H+ ← H2CO3 (3) Carbonate ion in aquaeous solutions act as base
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bicarbonate and requires an acidic ingredient (such as lemon juice‚ buttermilk‚ yoghurt‚ etc) to form carbon dioxide. When mixing baking soda (carbonate) and lemon juice (acid)‚ a clear gas is made called "carbon dioxide". Hence this gives us the general equation for the reaction between acid and carbonate. Acid + Carbonate  Carbon dioxide + Salt + Water Baking powder works the same way. The dry acid (i.e. tartaric acid) and base (i.e. sodium bicarbonate)
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ANALOGUE: Nuts and Bolts Table 4.2. Mass of nuts and bolts Mass of nuts (g) 4.126 Mass of bolts (g) 24.176 Mass of nut-and-bolt pairs 14.000 Table 4.3. Summary of results on nuts and bolts. B. THE TARGET: Reaction of Sodium Carbonate and Calcium Chloride. Table 4.4. Observations from the reaction between Na2CO3 and CaCL2. Sample Observations Na2CO3 solution COLORLESS CaCL2 solution COLORLESS Na2CO3 + few drops of CaCL2 Produced a cloudy‚ white mixture After Filtration Precipitate
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mL 400 mL beaker Stirring rod 250 mL beaker 250 mL graduated cylinder Procedure – Making the bath bomb 1. In the large beaker‚ 20 mL of citric acid was mixed together with 20 mL of cornstarch‚ and 65 mL of sodium hydrogen carbonate. 2. In the small beaker‚ 30 mL of vegetable oil and a few drops of the ester were mixed for fragrance. 3. The contents of the small beaker were poured into the large beaker and mixed well with a stirring rod. 4. The mixture was
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Title: Observation of Macroscopic Chemical Changes‚ Alice Kimbrell‚ Chemistry 101-DS01:74589‚ 5/31/2013. Purpose: In this lab‚ I will observe macroscopic changes that occur when mixing together certain chemicals and household cleaners. The mixing of the chemicals provided with each other and with acid/base indicators demonstrates how matter can change‚ and how chemistry can be seen with the naked eye. By mixing household cleaners with an acid/base indicator I hope to demonstrate how these
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by the Titration of EDTA By Hannah Denby Lab partners: Heidi Kiziah‚ Leonie Hamel University of Central Florida‚ CHM 2046L December 3rd‚ 2015 Abstract. The “hardness” of water is a common dilemma attributed by high concentrations of metals such as calcium and magnesium. This is a result of the properties of water; because it is a good solvent‚ impurities are easily dissolved. As water moves through soil and rock‚ it dissolves minute amounts of minerals and holds them in solution. Although it is not
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18. In a sample of solid calcium phosphate Ca3(PO4)2‚ the ratio of calcium ions to phosphate ions is - 3:2 19. What is the total number of atoms in (NH4)2SO4? - 15 20. What is the total number of oxygen atoms present in one unit of Mg(ClO3)2? - 6 21. What is the total number of atoms of oxygen in the formula Al(ClO3)3.6H2O? - 15 22. Write the correct formulas for the following binary ionic compounds. Compounds | Formulas | Lithium fluoride | LiF | Calcium oxide | CaO | Aluminum nitride
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