Modbury High School SACE Stage 1 Chemistry Topic 5 Mole Concept and Stoichiometry Assignment 5: Volumetric analysis (titrations)‚ stoichiometry SOLUTIONS Note: Write answers neatly and legibly in your exercise book or on pad paper. ALWAYS include a title and name for your work and clearly indicate each answer. 1. a) 23.08 and 23.00 mL are concordant titre values. Average titre = (23.08 + 23.00) = 23.04 mL 2 b) Ca(OH)2
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Lab #3: Stoichiometry of a Precipitation Reaction October 14‚ 2014 Abstract: The purpose of the lab‚ Stoichiometry of a Precipitation Reaction‚ is to be able to calculate the amount of a second reactant we need to react with the reactant one. You must calculate the amount of the second reactant using stoichiometry to figure out what amount is needed. After the amount is calculated‚ you then can add it to the first reactant and it will give you a full reaction. To figure out what you
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Copper-Silver Nitrate Reaction Introduction In this experiment copper wire will be placed in a solution of silver nitrate. This single replacement reaction will produce a blue solution of copper II nitrate and solid silver. By weighing the reactants before the reaction‚ the mass of silver produced can be predicted. This theoretical yield can be compared to the actual yield of silver. Purpose Students will compare the theoretical mass of silver with the actual mass of silver from the single
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Observing a Limiting Reactant An experiment was carried out to predict the limiting reactant in a chemical reaction between Magnesium and Hydrochloric acid‚ using the mole concept. Limiting Reactant: It is the reactant that will deplete or will be used up first during a chemical reaction. Limiting reactant also determine how long the reaction will last for. Balanced Equation: Mg + 2HCl = MgCl2 + H2 The balanced equation is needed to determine the mole ratio between the two reactants. From
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regulator capable of supplying in excess of 1.5 A over an output voltage range of 1.2 V to 37 V. This voltage regulator is exceptionally easy to use and requires only two external resistors to set the output voltage. Further‚ it employs internal current limiting‚ thermal shutdown and safe area compensation‚ making it essentially blow−out proof. The LM317 serves a wide variety of applications including local‚ on card regulation. This device can also be used to make a programmable output regulator‚ or by connecting
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substances react. By examining one specific example of stoichiometric determination‚ which is: “Stoichiometry and limiting reacting”‚ we found out the different mass proportions in which substance react. In this case‚ we used two common acids for this experiment (HCl‚ and H2SO4) and base NaOH Introduction: For this experiment‚ we use Stoichiometry and limiting reactant. The limiting reactant refers to the reactant that controls the amount of product that is
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such as atoms‚ molecules‚ or other specified particles. In all Stoichiometry problems‚ there are 4 or 5 basic steps which are: write and balance your reaction‚ with some reactions with more than one value known you need to figure out which is the limiting reactant and which is the excess reactant‚ find the known and unknown reactant or product‚ find the mole ratio‚ set equal‚ cross-multiple‚ then find your answer. Writing a balanced reaction would look like if you had Chlorine and Silver and made
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light-dependent reactions located in the leaf? 8. What is the function of a photosystem? 9. What is the function of water in the light-dependent reactions? 10. Describe the similarities and differences of Photosystems I & II 11. What are the limiting factors to photosynthesis? 12. Describe adaptations that allow the leaf to retain water. 13. Explain how photorespiration reduces production of glucose. Look at the graphs below. |A |[pic]
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LMounika Alluri Chemistry HL Block D 19/9/12 LAB REPORT #1 LIMITING REAGENTS INVESTIGATION Aim: To determine the limiting reagent and percent yield of the reaction between potassium iodide with lead (II) nitrate solution. Apparatus required: Safety glasses‚ funnel stands‚ watch glass‚ oven‚ electronic balance‚ wash bottle with distilled water‚ test tubes‚ 10.0mL 0.50M lead (II) nitrate‚ 10.0mL 0.30M of potassium iodide solution‚ two 100.0 mL beakers‚ funnel‚ filter paper. Reaction
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BPK 310 – Assignment 1 UNIT 1 Question 1 (5 marks): Discuss the rate-limiting factor. Why is it important to consider when studying exercise physiology and training? Provide one example to clarify your understanding. The rate-limiting factor is the “step” that limits performances (the “slow step”). If we know the rate-limiting step in a certain physiological pathway or training situation‚ we can manipulate the factors of this step to change and increase the rate of the pathway. This will improve
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