CONTENT 1 REVISION CHECK-LIST Form 4 Form 5 2 WRITING EQUATIONS 2.1 Charges of ions 2.2 Formulae of compounds 2.3 Reactions of Acid 2.4 Displacement of Metals 2.5 Double decomposition reaction 2.6 Others 3 CALCULATIONS 3.1 3.2 3.3 3.4 3.5 3.6 4 Relative Masses Mole and Number of particles Mole and Mass & Volume of Gases Empirical and Molecular Formulae Calculations involving Acids and Alkali Thermochemistry 23 24 24 – 25 26 27 – 29 29 - 30 17 17 18 – 19 20 20 21 4 - 10 11 - 15 PAGE GUIDED ESSAY WRITING
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Acids and Bases are two groups of chemical compounds that generally have opposite characteristics. They have there own unique traits‚ acids taste sour‚ turn litmus red while bases taste bitter and turn litmus blue. The term pH relates to measuring the acidity or alkalinity of a solution‚ such as vinegar‚ or even a damp substance like soul. The neutral pH is 7‚ which is essentially water‚ with lower numbers indicating acidity and higher numbers indicating alkalinity. Hydronium ions (H3O+) are
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prepared by dissolving 48 g of MnSO4.4H2O in water to five 100 cm3 solution; alkaline potassium iodide solution—prepared by dissolving 15 g of KI in about 25 cm3 of water‚ adding 66 cm3 of 50% NaOH‚ and diluting to 100 cm3; concentrated sulphuriv(VI) acid; 0.0125 M sodium thiosulphate solution; starch solution (freshly prepared). Apparatus: 250 cm3 volumetric flask‚ 250 cm3 conical flask‚ measuring cylinders‚ titration apparatus‚ magnetic stirrer Procedure: 1. Use a 250 cm3 volumetric flask to
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Chapter 8: Salts 1. Salts A salt is an ionic compound. The anion part comes from the acid while the cation part comes from a base. Example: KCl‚ KOH(aq) + HCl(aq) KCl(aq) + H2O(l) A salt is a compound formed when the hydrogen ion. H+ from an acid is replaced by a metal ion or an ammonium ion‚ NH4+. Salts Nitrate salts Carbonate salts Chloride salts Soluble All nitrate salts Potassium carbonate‚ K2CO3 Ammonium carbonate‚ (NH4)2CO3 Sodium carbonate‚ Na2CO3 All chloride salts Except Sulphate salts
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Aim: To calculate the concentration of acid in a sulphuric acid solution. Introduction: A titration is a method of analysis that will allow you to determine the precise endpoint of a reaction and the precise quantity of reactant in the titration flask. A burette is used to deliver the second reactant to the flask and an indicator is used to detect the endpoint of the reaction. So a chemical reaction is set up between a known volume of a solution of unknown concentration and a known volume of
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TITLE : * Analysis of an unknown acetic acid solution OBJECTIVES : * To prepare the sodium hydroxide solution‚ NaOH * To standardise the base against potassium hydrogen phthalate * To analyse the unknown acetic acid RESULTS : A. Preparation of the sodium hydroxide solution Volume of NaOH taken from the stock solution = 3.33 mL B. Standardisation of the base against potassium hydrogen phthalate | 1 | 2 | 3 | Weight KHP | 1.0000 | 1.0004 | 1.0006 | Final volume
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is usually a technique for separating and or identifying the components in a mixture). Like I was saying before scrubber systems rely on a chemical reaction with a sorbent to remove a bunch of toxic or harmful chemicals‚ like sulphur dioxide (SO2)‚ acid gases‚ and air toxics‚ from the flue gas (which is the smoke from the fire of a boiler which is made up of mainly carbon dioxide‚ carbon monoxide‚ and nitrogen). The sorbent that they normally use is limestone (CaCO3). When the limestone is crushed
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product when sulphur reacts with oxygen? a. Sulphuric acid b. Sulphur trioxide c. Sulphurous acid d. Sulphur dioxide Ans . 10. (d) 11. When sulphur dioxide is dissolve in water then- a. Sulphur is formed b. Sulphur trioxide is formed c. Sulphuric acid is formed d. Sulphurous acid is formed. Ans . 11. (c) 12. What is the chemical formula of sulphurous acid- a. H2SO4 b. SO2 c. SO3 d. H2SO3 Ans . 12. (d) 13. The sulphuric acid turns blue litmus paper into- a. Red b. Green c. Yellow
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SUBSTANCES IN INDUSTRY NAME: NUR INSYIRAH BTE. AB HAMED CLASS: 4 SAINS GUNAAN (SG) SCHOOL: SMK SERI INDAH CONTENT Content Introduction 9.1 Sulphuric acid 9.1.1 Properties of sulphuric acid 9.1.2 The uses of sulphuric acid 9.1.3 The industrial process in manufacture of sulphuric acid 9.1.4 Environmental pollution by sulphuric acid 9.2 Ammonia and its salt 9.2.1 Properties of ammonia 9.2.2 The uses of ammonia 9.2.3 The industrial process in manufacture of ammonia 9.3 Alloys 9.3.1 Physical
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Solution Review Complete all questions in this package. Be careful to use correct significant figures and units for any calculation problems. For all chemical equations use phase subscripts. Concentration 1. Calculate the concentration of the solution formed when 23.61 g of sodium phosphate is dissolved in 475.0 cm3 of water. 2. What volume of water is needed to dissolve 85.8 g of silver nitrate to make a 2.650 M solution? 3. What mass of magnesium sulphate is needed to make 1500
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