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A sealed vessel contains air at STP. It is heated to bring the air to a temperature of 80 °C. What will be the ratio of the mean free path of the air molecules at 80 °C to their mean free path at STP?
calculate the heat of combustion of ethylene c2h4. the bond energies are c h 416 kjmol c c 356 kjmol c c 598 kjmol o o
what is the hybridization of phosphorus in the phosphonium ion (PH4+)
based on mole ratios. a sample is 59.53 c 5.38h 10.68n and 24.40o what is its empirical formula. a 0.2000 gram sample
a piece of gold jewelry that weighs 9.35 g and has a volume of 0.654 cm3. the density of pure gold is 19.3 gcm3 and the
What value do you get for E using the Nernst Equation? The equation is E standard = -RT/nFln[1/Cu]. The values to plug in are E = 0.340 - (8.314*298)/(2*96500)ln[1/0.10]. I calculated E = 0.31044 V. Is this correct. Any help appreciated
Give the common name of the compound
Calculate the free energy change for the following reaction and predict whether the reaction occurs spontaneously at 25 degrees celcius. H2(g)+CO2(g)-->H20(g)+CO(g); ?H=41.8 kJ, ?S=42.1 J/K
given closed system air filled piston-cylinder devicep1 100 bar t1 400deg c p2 10 bar t2 100deg ccase 1 air first
Alkynes can be hydrated in the presence of acid and HgSO4, by electrophilic addition of a molecule of water to the triple bond.
the effect of temperature on gases confined to small volumes. What is the pressure of 3.40mol of gas D measured at 251 C in a 1.75-L container assuming real behavior?
Compute the concentration (in molarity) of a NaOH solution if 35.0 mL of the solution are needed to neutralize 12.0 mL of a 0.312MHCl solution
Explain what mass of lead sulfate in gram is formed in a lead-acid storage battery when 1.05g of undergoes oxidation. The keywords lead-acid storage battery seems to be what is messing up
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