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Palladium crystallizes in a face-centered cubit unit cell. Its density is 12.0 g/cm^3 at 27 degress C. Calculate the atomic radius of Pd.
A. 138 pm
B. 1.95 x 10^-8 nm
C. 1.95 x 10^-8 cm
D. 154 pm
E. 0.109 nm
The solubility of Ce(IO3)3 in a 0.20 M KIO3 is 4.4 multiplied by 10-8 mol/L. Calculate Ksp for Ce(IO3)3.
A truck driver used sand to soak up a 1 g spill of lindane (C6H6Cl6). He placed the contaminated soil in an open drum which then filled with 150 L of water during a rainstorm.
A vessel of volume 22.4 L contains 2.0 mol H2 and 1.0 mol N2 at 273.15K. calculate (a) the mole fractions of each component, (b) their partial pressures, (c) their total pressure , (d) the density of the mixtures.
If the rate increases by a factor of 10 as the temperature increases from 35 °C to 70°C, what is the activation energy for the reaction?
Consider the cell described below: Al/Al3+ (1.00M)//Pb2+ (1.00M)/Pb Calculate the cell potential after the reaction has operated long enough for the [Al3+] to have changed by .60 mol/L. Assume T=25 C
Among the non metallic elements, the change in atomic radius in moving one place left or right in a row is smaller than the change in moving one row up or down. Explain these observations.
Identify the group of elements that corresponds to the following generalized electron configuration: [noble gas]ns^2(n-2)f^6?
Calculate the concentration of silver necessary to begin precipitation of AgCl from a solution in which the Cl concentration is 7.4e-4 M.
The pH would decrease slightly. The pH would decrease dramatically. The pH would increase slightly. The pH would increase dramatically. The pH would not change at all.
The base solution was added to the acid solution but was not stirred while temperature measurement were not made: c.) Some of the base splashed out of the calorimeter while pouring:
What is a specific example that exists for each of these chemical reaction types above and why might it be of importance to healthcare professionals?
Calculate rate constant for 1. level reaction where 81% of the matters have already react after 27 seconds.
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