The fraction of lattice points occupied by vacancies in solid zinc at 419 C is 1.95x10^-4 . What is the energy required to create vacancies in zinc? Round your answer to three significant figures. Qv= ? J/mol

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Q: + A photon of blue light has a frequency of 7.20 x 10¹4 Hz. Calculate the wavelength of this photon…

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Q: what is the density of carbon tetrahydride at 685 torr and 65°c

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A: The given reaction is CO(g) + H2O(g) ⇔H2(g) + CO2(g)       Kc =5.3 Calculate the reaction quotient…

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Q: What is the value of K for this aqueous reaction at 298 K? A+B=C+D AG= 10.54 kJ/mol K= x10 TOOLS

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Q: The average speed of a helium atom at 25 °C is 1360 m-s-1. What is the average wavelength of a…

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Q: Which of the following ions will act as a strong base in water? A) HS B) F C) NO2- D) CIO

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A: The question is based on common ion effect. It states that the degree of dissociation of a weak…

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A: Half life of N95b , t1/2=35.0 days

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Q: Balance the following chemical equation: Cs₂O(s) + H₂O(1) → CsOH(aq) Cs2O(s) + H₂O(1) → 2CsOH(aq)…

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Q: What is the IUPAC name of each of the the following? CHỊCH,CH, CNH, to CHSCH CH CH3CH₂CH₂CNHCH₂-

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Q: . Calculate the Molar solubility of PbCO3 in a solution buffered to pH=7.00. Ksp=7.4x10-¹4;…

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Q: Use the following data to determine the molar heat of vaporization of chlorine. T (°C) P (mmHg)…

A: Given, (i)  T ( 0C )     -72.3 -39.7 P (mmHg)      15.3 369.3(ii) mass of B5 = 67.94 g

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Q: The pH of an arsenic acid H3ASO4 solution is 4.2. What is the concentration of the arsenate ion…

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Q: How much heat (in kJ) is produced by the complete combustion of 52.2 g of CH4? Use 1.01 g/mol for…

A: Given, mass of CH4 = 52.2 g  molar mass of CH4 = ( 1 x 12.0 g/mol + 4 x 1.01 g/mol) = 16.04 g/mol…