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A mixture contains 0.251 g Ar gas, 1.95 g of Xe gas and no other substances. The total pressure is 2.33 atm. What is the partial pressure of Ar? A. 1224 torr B. 527 torr C. 342 torr D. 228 torr E. 200 torr
NaHCO3 is added until the fizzing due to the formation of CO2(g) ceases. If 27.0 mL of 6.0 M H2SO4 was spilled, what is the minimum mass of solid NaHCO3 that must be added to the spill to neutralize the acid?
What mass of Al (26.89 amu) is consumed when 800. kJ of heat are released by the following reaction? 2Al(s) + Fe2O3(s) -> 2Fe(s) + Al2O3(s) deltaH = -850. kJ
A certain amount of glucose, C6H12O6 burned in oxygen, and produced 22 grams of carbon dioxide, CO2. How many grams of water was produced at the same time?
A 31.0-g sample of water at 290. K is mixed with 48.0 g water at 340. K. Calculate the final temperature of the mixture assuming no heat loss to the surroundings.
Given that the Ksp for silver bromide is 3.3 x 10-13, which of the following solutions would NOT produce a precipitate of AgBr? and WHY?
What is the free energy change, ?G°, for the equilibrium between hydrogen iodide, hydrogen, and iodine at 453°C? Kc = 0.020
The analysis was completed by titrating the excess acid with 11.37 mL of 0.1080 M NaOH. How many of these tablets represent a proper dose for patients whose weight is 100 lb (assume that 1 pound, lb, is 0.45 kg).
After workup and purification, a student obtains 1.1214 g of banana oil (isopentyl acetate). What is the percent yield for this reaction? Report your value to one decimal place (xx.x%)
The concentration of Mg2+ in seawater is 0.052 M. At what pH will 82% of the Mg2 be precipitated as the hydroxide salt? [Ksp for Mg(OH)2 = 8.9*10-12.]
45.00g of an ionizable solid with a MW = 54.2g/mol is added to exactly 250ml of water and the solution is found to boil at 102.380C. Another 38.5g is dissolved in 0.100L of water at 200C to produce a solution. By what amount will the freezing poin..
Use a table of standard thermodynamic values to predict the standard cell potential at 81 C: Cu(s)|CuSO4||AgNO3|Ag(s) Assume that the values of delta H and delta S are independent of temperature.
Determine the mass of carbon dioxide (in g) produced from the complete combustion of 1.40×10-2 g of C6H10 with excess oxygen.
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