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A: The polarizing power of cations depends on the charge density and size of the cation.
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A: C(s) + CO2(g) ⇌ 2CO(g)
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A: Given: molecular weights of nonpolar and non-ionic molecules.
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A: Given: Mass of KNO3 = 67 g The volume of water = 447 mL The density of water = 0.997 g/mL Standard...
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Q: Which of the following molecules can have dipole-dipole interactions as their strongest intermolecul...
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Q: The rate of a reaction was experimentally determined to double if the concentration of reactant A is...
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Which compound in each pair will undergo the faster SN1 reaction?
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- What is the oxidation state of nitrogen in each compound? (a) NO (b) NO2 (c) N½OComplete by balancing and classify the following reaction Al(metal foil)+CuCl293 Chemistry I Laboratory Manual, 2019 Revision Questions: gy muibor alo vialom od W (E 1) Samples containing iron(II) ion can be titrated with solutions containing dichromate ion under acidic conditions. OCHS Cr2072- + 6Fe2+ + 14H* → 2Cr+ + 6Fe3+ + 7H2O itio (a) Which ion is oxidized in this reaction? (b) Which ion is the reducing agent in this reaction? ry nistry ple. (c) If a 1.924 g sample containing iron(II) sulfate is dissolved and requires 36.1 mL of 0.0100 M K2Cr2O7 solution to titrate it, what is the percent iron(II) sulfate in the at sample? routine tiration de enin rntory skills on of sodiu de KH ph pu that the
- 1. A sample containing magnetite, Fe;O4, was analyzed by dissolving a 1.5419-g sample in concentrated HCl, giving a mixture of Fe²+ and Fe+. After adding HNO3 to oxidize any Fe2+ to Fe+, the resulting solution was diluted with water and the Fe precipitated as Fe(OH)3 by adding NH3. After filtering and rinsing, the residue was ignited, resulting to 0.8525 g of pure Fe2O3. Calculate the: a) % (w/w) Fe b) % (w/w) Fe;O4 in the sample.a student carries out this chemical reaction in a beaker Zn+CuCl2 -> Cu+ZnCl2 after the reaction has come to completion, what should the student expect to find in the beaker ?Part A) Write the chemical formula for cobalt (II) selenate hexahydrate Part B) The oxidation state of oxygen in sodium peroxide, Na2O2, is: (a) 0 (b) -1 (c) +1 (d) -2 (e) +2 Part C) The oxidation state of chromium in CrAsO4 is: (a) 0 (b) +1 (c) +2 (d) +3 (e) -3 Part D) How many moles of ions per liter are there in a 26.00% by mass aqueous sodium chloride solution (density of solution is 1.194 g/mL at 25oC)? (a) 0.4801 M (b) 8.90 M (c) 0.2434 M (d) 10.6 M (e) None of those, if so what is your answer?
- A sample of 1.55g of iron ore is dissolved in a acid solution in which the iron is converted into Fe2+. The solution formed is the titration with KMnO4 which oxidises Fe2+ to Fe3+ while the MnO4 ions are reduced to Mn2+ ions.92.9 mL of 0.020 M KMnO4 is required for titration to reach equivalence point. Write the balanced equation for titration.Assign the oxidation numbers of the atoms in the following compounds. (a) Al2O3 (b) XeF4 (c) K2Cr2O7Do (a) (ii)