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the temperature of a 2.0 liter sample of heluim gas at STP is increased to 27 celsius and the pressure is decreased to 80.0 kPa. what is the new volume of the helium sample.
If 25.6 L of NO2 forms, measured at 35°C and 605 mm Hg, what is the percent yield?
Determine the heats of formation or the steric energies of the exo- and endo-anhydride adducts using a molecular mechanics program.
How many mL of a 0.136 M aqueous solution of aluminum bromide, AlBr3, must be taken to obtain 17.3 grams of the salt?
The solubility of the ionic compound M2X3, having a molar mass of 214 g/mol, is 3.18 10-7 g/L. Calculate the Ksp of the compound.
What volume would 50.0 L of Helium gas at a pressure of 736 Torr and 20 C occupy at STP
Calculate the mass of AgNO3(s) that must be added to 0.500 L of a solution of 0.154 M NaClsolution to precipitate ‘all' of the chloride ion. The ‘all' means that we want to add the same number of moles of silver ion.
What is the isentropic work required for the ideal gas case? C) If the comppressor has an efficiency of 0.78 and is NON-ideal, what is the final temp and required work?
Calculate the No. of moles of KHP? (b) How many moles of NaOH will react with the KHP in dissolved water? (c) Calculate the molarity of the NaOH solution?
What is the mass of platinum required to solidify all the gold? What is the change in entropy of the system? Cp(Pt, s) = 25.86J/mol*K ?H?fus(Au, s l) = 12550J/mol
Draw structural formulas for all of the structural isomers of C4H10, C5H12 and C3H7Cl.
Calculate the standard free energy change for the process N2O5(s)-->N2O5(g) at 25 0C if Vapor pressure of N2O5 at 7.5 degrees C is 100mmHg, and the solid sublimes at a pressure of 1.00 atm at 32.4 0C.
How are conditions of pressure and temperature, at which two phases coexist in equilibrium, shown on a phase diagram? By a line separating the phases by the endpoints of the line segment separating the phases
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