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A cylindrical steel pipe is used to transport hydrogen gas in a certain process. The density of the hydrogen in the pipe is 5kg/m3 and the density in the environment is effectively zero. The pipe has a diameter of 5cm and a thickness of 3mm . If the diffusion coefficient of hydrogen in the steel is D1 = 1.24×10?4cm2/s when the temperature is 800K , what is the leak rate of hydrogen through one meter of pipe?
Estimate Delta G or this reaction at each of the following temperatures. (Assume that Delta H and Delta S do not change too much within the given temperature range.)
what is the volume of .712 M ammonium sulfate contains 8.90 g of ammonium ion?
Calculate the concentrations of NH4+ and NH3 and the pH in a solution prepared by mixing 22.0g of NaOH and 0.500L of 1.5 M NH4Cl. Assume that the volume remains constant.
calculate the molar quantity of N2 that must be generated.What molar quantity of sodium azide is required to generate this much nitrogen?
Hydrogen gas is collected at 29 c the total pressure of the system is 773 torr. If the vapor pressure of water at 29c is 30 torr what is the partial pressure of the hydrogen gas?
How many grams of NaOH are in a 225.0 mL sample of a 2.5 M solution of NaOH? (Molar mass of NaOH is 40.0 g/mol)
a natural hormone of moths has a molecular formula of C21H40(its a zero not an o) and yields the following three compounds on ozonolysis; (1) dodecanol
Certain metal cations can act as Lewis acids in water to produce an acidic solution even though the metal ion contains no hydrogen ions at all.
silver iodide in grams will dissolve in a solution that is a 2.0 x 10^-4 M silver nitrate when the system reaches equilibrium
When the following equation is balanced using the smallest possible integers, what is the number in front of the underlined substance?
aluminum block and that the alcohol vaporizes at 25 degree Celsius). Heat of vaporization of the alcohol = 45.4 kj/mol at 25 0C
Nitrogen gas reacts with hydrogen gas to make ammonia(NH3). 15.5 L of N2 reacts at STP to make 30 L of ammonia. What is the percent yield?
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