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A piston has an external pressure of 5.00 atm. How much work has been done if the cylinder goes from a volume of 0.130 liters to 0.540 liters.
2 NH3 + CH3OH → products . How much NH3 is needed to react exactly with 21 grams of CH3OH
Given the following data table of average bond enthalpies, estimate the ΔH^rxn for the reactions 2H2+O2-- 2H2O. What is the hybridization of xenon in each of your Lewis resonance structures?
Determine the value of work (w) when a piston of volume 0.2 litres expands against an external pressure of 200 kPa to a volume of 3.4 Litres?
Important information about PH calculations, Calculate the pH of the solution formed during a titration upon adding 35.0 ml of a standard .150M NaOH solution to
If you prepare a 1.00 m solution of NH4ClO4 beginning with water at 25.5C, what is the final temperature of the solution in C?
a sample of a binary compound of boron and chlorine weighing 2.842 g occupies .153 L. this sample is decomposed to give 0.664 g solid boron and enough gaseous chlorine to occupy .688 L at the same temperature and pressure. determine the molecular ..
An odorous gas emitted by a hot spring was found to diffuse 2.92 times slower than helium. What is the molar mass of the emitted gas.
The temperature is increased to 45 degree celcius then determine what is the pressure in the cylinder
The shielding of electrons gives rise to an effective nuclear charge,Zeff , which explains why boron is larger than oxygen. Estimate the approximate Zeff felt by a valence electron of boron and oxygen, respectively
Calculate the diffusion limiting current for the oxidation of an organic compound at an electrode in stagnant solution. Assume 6 electrons are involved in the reaction (n=6). C(org) = 0.01 M, D(org) = 2x10^-5 cm^2/s.
Heat is lost to the styrofoam calorimeter. Assuming a 6.22 C temperature change for the reaction of HCl(aq) with NaOH(aq), calculate the heat loss to the inner 2.35-g styrofoam cup. The specific heat of styrofoam is 1.34 J/gC.
Five metal rods (Copper, Iron, Nickel, Tin and Zinc), at room temperature, of equal mass are place in a 100 oC water bath. Which metal will reach 80 oC first.
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