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How many grams of aqueous iron bromide will be needed to react with an excess of potassium phosphate,K3PO4,to produce 17.1 g of solid iron phosphate?
An enclosure of volume 0.398 L has a partial pressure of O2 of 3.50 10-6 torr at 30.°C. What mass of magnesium will react according to the following equation. 2 Mg(s) + O2(g) → 2 MgO(s)
a compound is composed of only C.H and O. the combustion of a 0.519-g sample of the compound yields 1.24g of CO2 and 0.255g of H2O.
Given the following substances and their melting points, hydrogen, -259 degrees Celsius, ethyl alcohol, -114 degrees Celsius, water, 0 degrees Celsius, sucrose, 186 degrees Celsius, and calcium chloride, 772 degrees Celsius
what is the PH of cocaine hydrochloride that results from neutralizing a 25mL aliquot of 0.0372M cocaine solution
what is the pH of a solution prepared by mixing 25 mL of 0.10 M methylamine with 25 mL of 0.10 M methylammonium chloride?assume that the volume of the solutions are additive and that Kb = 3.7 x 10^-4 for methylamine
Carbon emits photons at 745 nm when exposed to blackbody radiation. How much energy would be obtained if 44 g of carbon were irradiated?
An acid solution is 0.120 M in HCl and 0.210 M in H2SO4.What volume of a 0.160 M KOH solution would have to be added to 550.0 mL of the acidic solution to neutralize completely all of the acid.
if you started a ride with ice packs that held 1600g of frozen water at 0 degree celius, and the temperature of the water at the end of the ride is 32 degree celius, How many calories of heat energy were absorb
Calculate the percent yield of the reaction of 205 grams aluminum hydroxide with 751 grams hydrogen sulfate (sulfuric acid), given that 252 grams aluminum sulfate are produced
The density of citronellal, a mosquito repellant, is 1.45 g · L-1 at 365C and 50.0 kPa. What is the molar mass of citronellal?
Suppose a solution contains 0.25 M Pb2 and 0.49 M Al3 . Calculate the pH range that would allow Al(OH)3 to precipitate but not Pb(OH)2
Lead(II) sulfide reacts with hydrogen peroxide to form lead(II) sulfate and water. How many grams of hydrogen peroxide are needed to react completely with 265 g of lead(II) sulfide.
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