A 1.077 g sample containing Cu (63.546 g/mol) is analyzed by reducing copper(II) to copper(I) by the reaction of iodide ions. 2Cu2+ + 4I- ⟶ 2CuI + I2 The sample required 15 mL of 0.1000 M Na2S2O3 to react to all the liberated I2 completely. 2S2O32- + I2 ⟶ 2I- + S4O62- What is the %Cu in the sample?

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Q: 2. Titration of Ca²+ and Mg²+ in a 50mL sample of hard water required 23.65mL of 0.01205M EDTA. A…

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Q: Consider the following reaction: 2H₂ + O₂ --> 2H₂O How many moles of water can be formed from 2.5…

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Q: Q6) A liquid is placed into a sealed vial and set on the benchtop to equilibrate at room temperature…

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A: In the keto-enol tautomerism, a ketone is converted into an enol through the shuffling of the alpha…

Q: Determine AG° for a reaction when AG = -171.0 kJ/mol and Q = 0.043 at 298 K. (R = 8.314 J/mol K) ●

A: G = -171.0 KJ /mol = -171.0 x 103 J/molQ = 0.043 at 298 KR = 8.314 J/ mol .K

Q: What is the IUPAC name of the following? CH₂COCH₂CH₂ Submit Answer Try Another Version 10 item…

A: The IUPAC name of the compound is given by using the rules of IUPAC nomenclature.

Q: 150 g of sodium iodide (Nal, MW 150 g/mol) dissolved in 2 liters of water. What is the boiling point…

A:

Q: For the unbalanced reaction below, calculate how many grams of potassium chloride form when 6.53 g…

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Q: The activation energy for the gas phase decomposition of vinyl ethyl ether is 183 kJ. CH₂=CH-OC₂H5 →…

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Q: 17.28 G ol b. Q CH₂CH₂ c. CH₂- d. NH₂ O₂N Br Br OH NO₂ 9. h. CH₂CH₂ Br Ph CH₂CH₂CH₂ CH(CH₂)2

A:

Q: c) HC CH + any reagent PhH₂C. H H Lov trans CH₂CH3 ? H H CH₂OH OH -OH CH₂CH3 (Racemic)

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Q: 12. Propose a mechanism for this reaction and provide the major product: EtOH, EtONa…

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Q: Consider the reaction of the molecule below with bromine in acetic acid. Where (which carbon or…

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Q: 6. GeFaH is formed from GeH4 and GeF4 in the combination reaction: GeH4+ 3GeF4 → 4GeF3H If the…

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Q: Given the following reaction at equilibrium, if Kc = 1.9 × 10 19 at 25.0°C, what is Kp? H2 (g) + BR2…

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Q: Draw the major product of this reaction. Ignore inorganic byproducts. NBS Q

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Q: 8. Which signal corresponds to the carbon atom indicated? (d), (e) (a) 200 180 CD-00-217 160 (c) (b)…

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Q: A buffer solution contains 0.248 M KH2PO4 and 0.482 M Na2HPO4. If 0.0383 moles of hydrobromic acid…

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