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A certain first-order reaction has a rate constant of 2.30×10-2 s^-1 at 23 C. What is the value of k at 55 C if Ea= 84.0 kj/mol?
At 55.0 , what is the vapor pressure of a solution prepared by dissolving 73.2 of in 247 of water? The vapor pressure of water at 55.0 is 118 . Assume complete dissociation of the solute.
Calculate the value of the equilibrium constant for the reaction that occurs when solid sodium oxalate is dissolved in water.
Select a phospholipid and use it to illustrate the action of phospholipase A2 and discuss the structural ramifications of this reaction on the membrane.
A technician plates a bowl with about 4.6 grams of chromium from an aqueous chromium (III) sulfate. What current is needed to plate this amount of chromium in 3.5 hours.
A mixture of N2, O2, and CO2 has a total pressure of 791. torr. In this mixture the partial pressure of N2 is 115. torr and the partial pressure of O2 is 193. torr.
2C_4H_{10}{(g)}+13O_2 {(g)}\rightarrow 10H_2O{(g)}+8CO_2{(g)} USE the balanced equation to answer both! Calculate the mass of water produced when 2.99 of butane reacts with excess oxygen. Calculate the mass of butane needed to produce 98.2g of car..
Calcium metal has a density of 1.55g/cm3 and crystallizes in a cubic unit cell with an edge length of 558.2pm. a. how many Ca atoms are in one unit cell?
what is the resonance energy of c6h6 and how do you find
A radio station's channel, such as 100.7 FM or 92.3 FM, is actually its frequency in megahertz (MHz), where 1MHz=10^6 Hz. Calculate the broadcast wavelength of the radio station 99.10 FM.
three mole of aluminum metal react with a mole of solid iron(iii) oxide to produce two moles iron metal and a mole of solid aluminum oxide
Determine if Ni should dissolve easily in Cu. Show that your determination is correct by providing the Cu-rich side of the appropriate equilibrium phase diagram.
Consider an aqueous solution that is saturated with lead iodide, lead sulfate and 0.10 M K2SO4 (a strong electrolyte). Write mass and charge balance equations that describe the system
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