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The density of water at room temperature is 0.9970g cm^-3. How many lbs does the water in a full 5.00 gal weigh?
purpose a mechanism for the polymerization of methyl methacrylate in the presence of t-butyl proxybenzoate
A student constructs a coffee cup colrimeter and places 50 ml of water into it. After a brief period of stabilization, the temp of the water in the calorimeter is 23.5 celsius
Sketch the titration curve for carbonic acid H2CO3. Plot pH on the ordinate axis and relative equivalents of base added on the abscissa axis. Using this figure, indicate what the major species of the carbonate buffe
Naturally occuring iodine is iodine-127. medically, radioactive isotopes of iodine-125 and iodine-130 are used. a)write the atomic symbol for each isotope. b)in what ways are the isotopes similar, and in what ways do they differ
Determine the density and atomic radius of tungsten (W) if it crystallizes in a face centered cubic arrangement with cell edge 399 pm.
what is the average power (energy per unit time) in units of watts (1W = 1J/s) associated with such a pulse? b. How many photons are emitted in such a pulse?
Calculate the pH of the solution that results when 100.0 mL of 0.15 M NaOH is added to 50.0 mL of 0.25 M HNO3
identify and discuss three key features associated with the combustion of polymeric materials or compounds that are
An ethylene glycol solution contains 21.2 g of ethylene glycol in 85.4 ml of water. Compute the freezing point and boiling point of the solution. (Assume a density of 1.00 g/mL for water)
How many kilocalories are required to produce 1.39 mol of aluminum? 2Al2O3 yields 4Al+3O2; (delta) H = +801(kcal/mol (+3350 kJ/mol )
A saturated solution of silver(I) hydroxide, AgOH has a pH of 10.15. What is the value of the equilibrium constant, Ksp, for this system?
The acid dissociation constant (Ka) of caffeineH+ is Ka = 0.25 M. If a cup of tea has a pH of 7.6, what should be the ratio of concentrations of caffeineH+ to unprotonated caffeine in the tea
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