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A bottle at 285K contains an idea gas at a pressure of 155.7 * 10^3 Pa. The rubber stopper closing the bottle is removed. Gas expands adiabatically against P(external) = 111.4 * 10^3 Pa, and some gas is expelled from the bottle from the process. When P = P(external), the stopper is quickly replaced. The gas remaining in the bottle slowly warms up to 285K. what is the final pressure in the bottle for a monatomic gas for which C(v,m) = 3R/2?
An iron ore sample is a mixture of Fe2O3 and several impurities. A 752. g sample of the impure iron ore is heated with excess carbon. Only the Fe2O3 present in the ore reacts with the carbon producing 341. g of carbon monoxide by the following rea..
What mass of potassium carbonate K2CO3, must be weighed out to prepare 125.0mL of a 0.0500M solution of salt?
Gold has a density of 19.3 g/cm3. How many pounds does a gold sphere weigh if it has a diameter of 5.20 inches?
how many moles of glucose C6H12O6 can be burned biologically when 10.0 mole of oxygen is available
suppose the flame on a gas burner emits light just like a blackbody. The flame appears blue, emitting most of its light at a wavelength of 475 nanometers.
Small helium-neon lasers emit 2.94 mJ/s of light at 634 nm. How many photons does such a laser emit in one minute?
A sample of compact bone has a mass of 5.80 g and a volume of 3.00 cm3. What is the density of the sample?
Addition of HBr to 1-phenylpropene yield only (1-bromopropyl)benzene. Propose a mechanism for the reaction and explain using resonance structures why none of the other regioisomer is produced?
Calculate the equivalent weight of the unknown weak acid (g/eq). Calculate the molecular weight of the acid described in Question 1 (g/mol).
the depth of each tank is 2 m and each has a detention time of 4 h. what is the surface area of each tank and what is the overflow rate of each tank in m^3/d*m^2?
Compute the concentrations of all species in a 0.900 M sodium sulfite solution. If it is given that the ionization constants for H2SO3 are Ka1=1.4x10^-2 and Ka2=6.3x10^-8.
Complete the reaction of salicylic acid and 4-aminobenzenesulfonic acid by drawing the expected product.
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