LAB REPORT 6 – IONIC REACTIONS No credit will be given for this lab report if the Data section is not completely filled out. OBJECTIVES 1. Study the nature of ionic reactions 2. Write balanced equations 3. Write net ionic equations for precipitation reactions PROCEDURE Please complete the entire experiment as instructed in the lab manual except for any modifications noted below. Fill out the report below‚ insert your digital photographs into the report‚ and submit it me electronically
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which define the Arrhenius equation for the decomposition of cyclobutane are In (A/s-1) = 15.6 and Ea = 261 kJ mol-1. Determine the half-life of cyclobutane at the temperature of 773 K. C4H8 (g) 2 C2H4 (g) The decomposition of cyclobutane follows first order kinetics as the unit of A is s-1. Comment: The units for A provide information on the reaction’s overall order of kinetics. Substitute the values of In A = 15.6 and Ea = 261 x 103 into the Arrhenius equation. k = 3.595 x 10-17 s-1 half-life
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of tree growth rate and the current height and the difference between the maximum height and its current height is k. Model building and solving According to the analysis of the problem and the assumptions made above‚ we obtain the following equation: Where the proportional constant k
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trading account - A profit and loss account EXAMPLE OF INCOME STATEMENT EXAMPLE OF BALANCED SHEET INTRODUCTION BOOK OF PRIME ENTRY •Book of prime entry is also known as double-entry bookkeeping which is based on the same idea as the accounting equation. •Every accounting transaction has two equal but opposite effects. •Equality of assets and liabilities is preserved. •Therefore‚ in a system of double entry bookkeeping‚ every accounting event must be entered in ledger accounts. •Both as a debit
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PROPORTION METHOD The proportion method is used in both of these expressions. A proportion is an equation that says that two ratios are equivalent. The use of cross multiplying is in use in both expressions as well. I believe the first expression (#56) uses the extreme-means property; the product of the means is equal to the product of the extremes. #56. To estimate the size of the bear population on the Keweenaw Peninsula‚ conservationists captured‚ tagged‚ and released 50 bears
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reactors‚ or nature‚ can be described by reaction equations. Knowing the skeletal reaction equation‚ the reactants and the products are also known‚ but for quantitative predictions‚ the reaction equation needs to be balanced. A balanced equation is an equation or a chemical reaction in which the number of atoms for each element in the reaction and the total charge are the same for both the reactants and the products. (1) From a balanced equation‚ the mole relationship can be figured out. The amount
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calculate their mole-to-mole ratio. The mole-to-mole ratio relating to the disappearance of copper and the formation of silver metal will be used to write the balanced equation for the reaction. The reaction of copper metal with silver nitrate solution is a single replacement reaction‚ represented by the following unbalanced equation: Cu(s) + AgNO3(aq) → Cu(NO3)2(aq) + Ag(s) The values of the coefficients can be determined experimentally by measuring the mass of copper wire that reacts with
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17. In a sample of solid Al(NO3)3‚ the ratio of aluminum ions to nitrate ions is (1) 1:1 (2) 1:2 (3) 1:3 (4) 1:6 19. What is the total number of atoms in (NH4)2SO4? (1) 10 (2) 11 (3) 14 (4) 15 22. Write the correct formula for the following binary ionic compounds. (a) Lithium fluoride LiF (b) Calcium oxide CaO (c) Aluminum nitride AlN (d) Beryllium chloride BeCl2 (e) Potassium iodide KI (f) Aluminum oxide Al2O3 23. Write the correct formula for the following binary molecular
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Figure 1 below shows the change in magnitude of the steady state acceleration with time. This graph complies with Newton’s second law as the force applied is equal to 1 and the mass remains constant so and an acceleration of one is expected. I also tested this by changing the value of the force applied‚ to a value of 2‚ which in theory should give and equivalent change in the acceleration‚ to a value of 2. From Newton’s second law: it can be seen that as the force varies‚ provided moment of inertia
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Rate of Decomposition of Calcium Carbonate Theory Calcium carbonate‚ CaCO3‚is one of the most abundant minerals on the Earth. More than 4% of the Earth’s crust is composed of calcium carbonate. It is a major component in limestone‚ marble‚ seashells‚ bedrock‚ etc. Limestone and marble have been among the most widely used building materials for more than 5 000 years‚ from the pyramids in Egypt to the Parthenon in Greece and the Taj Mahal in India. In many places‚ limestone is also the foundation
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