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Copper crystallizes in a face-centered cubic lattice. If the density of metallic copper is 8.96 g/cm^3, what is the radius of the copper atom?
One mole of an ideal monatomic gas initially at 300K is expanded from an initial pressure of 10 atm to a final pressure of 1 atm. Calculate change in E, q, w, and change in H and the final temp if the expansion is carried out according to each of ..
Given Data; P4+6Cl2=4PCl3 change temp= -2439 kj ,4PCl5=P4+10Cl2 change temp= 3438 kj calculate change in temp for the reaction PCl5=PCl3+Cl2.
Suppose that 1.06 g of rubbing alcohol (C3H8O) evaporates from a 64.0-g aluminum block. If the aluminum block is initially at 38°C, what is the final temperature of the block
The mass of silica needed to produce one- 325mg of aspirin tablet. the formulae is C4H6O3 + C7H6O3 --> C9H8O4 + C2H4O2
Sulfate becomes bound to four Al(CH3)3 fragments in the dianion [Al4(CH3)12SO4]^-2. Using the bond angles and lengths as a guide decide if the Al(CH3)3 groups alter the SO4^2- group significantly upon formation of the [Al4(CH3)12SO4]^-2 product. E..
The solubility of silver sulfate, Ag2SO4, in water has been determined to be 8.0 g/L. What is the solubility in 0.24 M sodium sulfate, Na2SO4
Give the bond angle and describe the shape around the central atom designated in this molecule. O in HO of H3PO4 (no H-P bond) a. trigonal planar; 120° b. trigonal planar;
calculate the average rate of disappearance of A for each 40-s interval, in units of mol/s. c.) what additional information would be needed to calculate the rate in units of concentration per time?
In situations where it is not possible to return samples to Earth for analysis, the presence of extraterrestrial life may be uncovered by making spectroscopic measurements.
fundamentals of acids and bases.1. water self ionizes to a small extent creating equal concentrations of hydronium and
Explain the general principle of chromatography. Please include discussion on retention time, mobile phase, and stationary phase.
You have just returned from a twenty five mile jog around the track at the Student Recreational center. As sweat drips from your chin, you contemplate the concept of fluid replacement, but can't find a bottle of Gatorade in your frig
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