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A 1.247 g piece of aluminum metal is placed in 63.5mL of 0.2054M sulfuric acid solution and reacts in a single displacement reaction. The hydrogen gas product is collected by displacement of water into a container that has a temperature of 26.0 C and whose gas pressure is set equal to barometric pressure of 769.4 torr. Calculate the number of moles of the hydrogen gas produced during the reaction, then calculate the volume that hydrogen gas would occupy at STP.
what is the molarity of all solutes in this solution. what is the osmotic pressure of the solution at 25 C. assume total dissociation of NaCL.
The yield of the reaction to form your chalcone is not quantitative. What side products might be formed from your aldol condensation?
Ten milliliters of a 5 x 10^-3 M solution of Cl- ions are reacted with a 0.500 M solution of AgNO3. What is the maximum mass of AgCl that precipitates
Consider a lithium nucleus, of charge +3q Calculate the first three electron energies for an electron in Li++ ion
The mass spectrum of an organic compound shows the relative abundances of M to be 36.44% and M 1 to be 8.277%. Assuming the peaks are caused by 12C and 13C isotopes
18.6 grams of a solute with molecular mass of 8940 grams are dissolved in enough water to make 1.00 dm? of solution at 25 àC. What is the osmotic pressure of the solution?
When M2S3(s) is heated in air, it is converted to MO2(s). A 3.700-g sample of M2S3(s) shows a decrease in mass of 0.207 g when it is heated in air.
In the qualitative cation analysis procedure, Bi3+ is detected by the appearance of a white precipitate of bismuthyl hydroxide, BiOOH(s): BiOOH(s) --->
A colored complex of unknown sample solution exhibits 23% transmission through 1-cm long cuvette. A 1/1 dilution solution exhibits a transmission of 47.8%. The transmission from the blank solution is 96%. Calculate the molar absorptivity of the co..
How many moles of Bi atoms are needed to combine with 1.58 mol of O atoms to make Bismuth Oxide, Bi2O3
the density of aluminum is 2.70 gm/cm3 the density of chromium is 7.19 gm/cm3. if equal masses of Al and Cr are addede to equal vol of H2O in separate graduate cylinder which would have the greatest change in volume
A tank contains helium gas at 490. mmHg, nitrogen gas at 0.750 atm, and neon at 520. torr. What is the total pressure in atm?
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