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1) Although the aluminum cylinder is a solid (and, therefore, is quite in-compressible), it actually contains quite a bit of empty space. Consider an aluminum atom to be a sphere with radius equal to 143 pm and calculate the volume actually occupied by the atoms in your aluminum cylinder (1 pm = 10^-12 m; V¬Sphere = 4/3?r¬^3
An aqueous solution of etanol, C2H5OH is 19% ethanol by mass and has density of 0.9700gml. Calculate the molality, molarity of the ethanol solution.
What is the molecular formula of a compound with the empirical formula NO¿ and a molar mass of 138.02 grams per mole?
What is the wavelength of a light ray if its frequency is 4.64 x 1014 s-1? answer in units of nanometers (nm).
how many liters of O2 can be made from 342 g H2O2 if the density of O2 is 1.428 g/L?
Compute the mass of an electron if the difference in the mass of 100 moles each of sodium atoms and sodium ions is 5.48002 grams?
Four (4.00) moles of a perfect gas at 250.0 K and 1.50 bar pressure undergo a reversible isothermal compression until the pressure becomes 3.00 bar.
Determining Copper in Brass, 1st I titrated Na2S2O3 and determined the molarity to be 0.164. I am having trouble with the calculations for the dissolution of brass.
Calculate E when 770.0 g of CH3OH(g) completely reacts at a constant temperature of 300 K and constant pressure of 0.95 atm. R = 8.314 J/mol*K and R = 0.08206 atm*L/mol*K.
Multiple choice questions in free energy change and What is the free energy change in kJ/mole?
Determine the extent of reaction and amounts of B & Z and A reaction having time independent stoichiometry follows the equation
Determine the mass of the steel bar if the final temperature of the system is twenty one degree Celsius?
How many grams of CH3OH must be added to water to prepare 150mL of a solution that is 2.0 M CH3OH?
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