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A metal crystallizes in a body-centered unit cell with an edge length of 2.00 * 10^2 pm. Assume the atoms in the cell touch along the cube diagonal. The percentage of empty volume in the unit cell will be:
A) 0%B) 26.0%C) 32.0%D) 68.0%E) none of these
The enthalpy of activation of a first order reaction is 123kj/mol. The rate constant at 80 C is 1.73x10^-2 s^-1. What is the rate constant at 35 C. (R=8.31 j/mol K)
Compute the change in temperature for 4.50 grams of Calcium chloride CaCl 2 dissolved in 90.0 mL of water H 2 O. (Assume that the calorimeter absorbs no heat )
In the Hofmann Degradation of amines an amine is exhaustively methylated with Methyl Iodide and the resultant compound treated with Silver Hydroxide and heated. An alkene is formed which is not the Saytzeff product.
Write a chemical equation for the formation of methionyl glycine
Calculate how many such photons are emitted per second by a 80.0-W incandescent lightbulb if we Assume that the light has an average wavelength = 510.0 nm, .
What minimum OH- concentration must be attained (for example adding NaOH) to decrease the Mg2+ concentration in a solution of Mg(NO3)2 to less than 1.1e-10 M
The total amount of water runoff from the road is equal to a volume that would make the water on the roadway be at a depth of 0.4 inches if it all stayed on the roadway.
How many grams of can be produced from 3.15 of. Express your answer numerically in grams.
What is the final temperature of the water when equilibrium is reached? (Assume a density of 0.998 (g/mL) for water.)
a 5.00 g chunk of potassium is dropped into 1.00 kg water at 24 deg c. what is the final temperature of the water after
Why are primary and secondary alcohols relatively easy to oxidize, but tertiary alcohols resist oxidation
When 5.00 g of fructose, C6H12O6, (FW 180.16 g/mol) is burned in a calorimeter whose heat capacity is 29.7 kJ/oK, the temperature increases by 2.635oK. Calculate the heat of combustion of fructose in kJ per mole.
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