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A scientist wants to make a solution of tribasic sodium phosphate, Na_3PO_4, for a laboratory experiment. How many grams of Na_3PO_4 will be needed to produce 350 mL of a solution that has a concentration of Na^+ ions of 1.20M?
Calculate the number of moles of CO2 initially placed in the container, assuming the volume of solid carbon is negligible. For the reaction mixture at equilibrium at 1160 K, the partial pressure of CO2 is 1.63 atm. Calculate using the ice table:
The reactants A and B are mixed, and the reaction is timed until a color change occurs. The data is as follows-
At a certain temperature the vapor pressure of pure benzene and pure toluene are 380 torr and 130 torr, respectively. If 7.50 mol benzene is mixed with 6.64 mol toluene
How much benzoic acid should be formed and will it be pure (in theory)? Is 50mL of water an appropriate volume for this procedure. If not, what is the minimum volume of water required? Use calculations to aid in your explanation.
a sample of gas occupies a volume of 364 ml at 1.28 atm and 27 oc. calculate the volume of the gas if its temperature
A compound is 80.0% carbon and 20.0% hydrogen by mass. assume a 100 gram sample of this compound. How many moles of each element are in this sample
Compare and contrast the three major Acid-Base Theories, Arrhenius, Bronsted- Lowry and Lewis. Give approximate explanations of the dynamics, and provide at least three examples that illustrate each of the theories' major points.
At equilibrium a 2L vessel contains .410 mol of H2, .130mol of Br2, and 36.0 mol of HBr. What is the equilibrium constant for the reaction at this temperature?
In an equilibrium mixture of the three gases, the partial pressures of SO2Cl2 and SO2 are 3.31 atm and 1.59 atm, respectively. What is the partial pressure of Cl2 in the equilibrium mixture?
Consider two samples of liquid: one mole of water H2O and one mole of ethanol C2H5OH. The density of water is 1.0 g/mL, and the density of ethanol is 0.785 g/mL
Calculate the water evaporated n each evaporator, assuming that the fraction of water in the feed removed in each evaporator is the same. Then, develop a linear model of a flow sheet with N evaporators, assuming that the fractional recovery of wat..
a 31.0-g sample of water at 260. k is mixed with 48.0 g water at 320. k. calculate the final temperature of the mixture
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