12.8 mL of 0.0354 M potassium permanganate solution is used to titrate 0.188 g of an unknown sample containing iron (II).  Calculate the percent by mass of an iron (II) in the unknown sample.

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A: Entropy is the randomness of particles.

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Q: if you have 105 ml of a liquid with a density of 1.15 g/cm^3, how many grams do you have?

A: Formula of density would be used to calculate mass in grams .

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Q: Which one of the following equations is incorrect? OH CH3CH₂CH₂OH Cr₂O7² H₂SO4 CH3CH₂C=0 a) OH H 1…

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A: Since you have asked multiple questions with multiple sub-parts, we will solve the first question…

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Q: The reaction of 50 mL of N2 gas with 150 mL of H2 gas to form ammonia via the equation:…

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Q: What is the underlying, fundamental force for the formation of all chemical bonds? Select one: O A.…

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Q: 1. CH₂-CH₂-CH₂-CH₂-CH₂ + H₂O 2. H₂C-CH=CH₂ + HBr/H₂O₂ 3. H,C-CH (OH)-CH, +H* 4. Nitrobenzene +? ?…

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Q: 15. Earth abundant Ni compounds with appropriate ligands have been reported to catalyze C- C bond…

A: Here we are required to find the total electron count and oxidation state of Ni in both complex .

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Q: Q3/ Prepare each of the following compounds by using any inorganic reagents necessary: 1)…

A: Detail mechanistic pathway and exact reagent for every steps are given below

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Q: Sodium sulfate is slowly added to a solution containing 0.0500 M Ca²+ (aq) and 0.0300 M Ag+ (aq).…

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Q: Ph a b 24 a or b Ph 27 OH HO 26

A: Reactions in Ether

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Q: Give the IUPAC name of these compounds.

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Q: 5.2) Calculate AE for the combustion of hydrogen chloride at 25°C. (The ideal gas constant R-8.314…

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Q: Ph a b доби 24 Ph Ph 25 27 CI ОН НО CI 26 28

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Q: Which of the following combination of alcohol and haloalkane will proceed to form an ether? a…

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Q: Methane is burned in a complete combustion reaction. CH₂(g) +20₂(g) → CO₂(g) + 2H₂O(g) What volume…

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Q: A 4.55L sample of water contains 0.115 g of Na+ ions. Determine the concentration of Na+ ions in ppm…

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A: Note- Dear student , the given question is a multiple question, hence I solved first question…

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Q: Consider the following reversible reaction: 2C0 (g) + 0, (g) = 2C02(g). Describe a way to increase…

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Q: What is the order of increasing acidity for the following compounds?  (least to most)

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