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Choose the answer in which the two atoms are listed in order of increasing ionization energy (smallest ionization energy listed first).
a) F < O
b) I < Ga
c) Se < Sb
d) Br < Al
e) Te < S
The second virial coefficient of methane can be approximated by the empirical equation , where a = -0.1993 bar-1, b = 0.2002 bar-1, and c = 1131 K2 with 300 K
Dehydrohalogenation Prepare styrene (C6H5CH=CH2) by dehydrohalogenation of either 1-bromo-2-phenylethane or 1-bromo-1phenylethane using KOH in ethanol.
Calculate the molarity of a solution made by adding 23.9 mL of concentrated potassium hydroxide (34.5 % by mass, density 1.46 g/mL) to some water in a volumetric flask
How mush heat energy is reuired to melt one ice cube in a soft drink to form liquid water at 0 degrees C, if the ice cube has a mass of 18.9 g?
calculate the unknown concentration for the analyte noted as (xM) from the potential data given at 25 oC Pt/Fe 2+ (0.05 M)//Ag+ (xM) /Ag.
The pressure of 9.0 L of an ideal gas in a flexible container is decreased to one-eighth of its original pressure, and its absolute temperature is decreased to one-forth of the original. What is the final volume of the gas?
At 25°C, 1.0 g of caffeine is dissolve into 47 ml of water, 18 ml of dichloromethane, into 86 ml of benzene, or into 270 ml of diethyl ether. Which solvent would provide the largest extraction coefficient (KD). Briefly explain.
Two objects at different temperatures are placed in a perfectly insulated calorimeter. When the system reaches equilibrium, which of the following statements is true?
When 1.7 g sodium nitride is heated it forms sodium metal and nitrogen gas. How many grams of each are formed?
When radiation of a wavelength 2.45 x 10^-7 m falls on metal surface, the maximum kinetic energy of the emitted electrons is found to be 6.73 x 10^-19. What is the value in J of the work fuction of the metal
Consider all possible transitions from the initial state to the final state of the hydrogen atom described above. Calculate all possible values of the wavelength of the emitted radiation.
estimate the mean ionic activity coefficient for NaCl in a solution that is 0.020 mol/kg NaCl(aq) and 0.035 mol/kg Ca(NO3)2 (aq)
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