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Question- Which of the following elements is expected to have the greatest electron affinity in this group (accepts one extra electron most readily)? H , Cl, I, Cs, Li
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if 60.2 grams of hg combines completely with 24.0 grams br to form a compound what is the percent composition of hg in
Compute the atmospheric pressure at elevation 7500 ft considering the atmosphere as a static fluid. Presume standard atmosphere at sea level (14.70 psia). Also presume that air has a constant density. (g=0.07648 lb/ft3)
An unknown gas has been determined to have the empirical formula CH2. At 27°C and 0.966 atm, the gas has a density of 1.65 g/L. What is the molecular formula of this gas
consider the equilibrium?n2g o2g 2nogat a certain temperature the equilibrium constant for the reaction is 0.0255.
What is the molarity of a solution produced by dissolving 31 g of Cu(NO3)2 in a 100 mL volumetric flask?(Enter unit as M.)
naturally occuring copper contains a miture of 69.09% copper-63 (62.9298 amu) and 30.91% copper-65 (64.9278 amu)
Calculate the percentage ionic character of the interatomic bond for each of the following compounds: GaP, MgO, CsF, CsF, CdS, and FeO
A student calibrates his/her calorimeter. S/he performs part 1 as instructed. The data are: 99.4 g water at 36.0°C are added to 98.0 g water in the calorimeter at 16.0°C.
What is the pH of a solution prepared by mixing 25.00 mL of a 0.10 M solution of the weak acid CH3CO2H with 25.00 mL of 0.040 M sodium acetate, CH3CO2Na? Assume that the volume of the solutions are additive and that Ka = 1.8 ?* 10-5 for CH3CO2H.
A salt water mixture is 33.0% (w/w) walt. (The w/w refers to weight / weight or mass / mass). If there are 300.0 g salt in the mixture, what is the total weight of the mixture?
A hydrogen atom with an electron in its ground state interacts with a photon of light with a wavelength of 1.22 × 10-6m. Could the electron make a transition from the ground state to a higher energy level?
Calculate the molality, molarity, and mole fraction of FeCl3 in a 36.9 mass % aqueous solution
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