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A 500. mL gas sample is collected over water at a pressure of 740 mmHg and 60 °C. What is the volume of the dry gas at STP? (STP = 1 atm and 0 °C.) Vapor pressure of water at 60. °C is 149 mmHg
How much heat is needed to melt 22.4g of ice at zero degrees celcius to form liquid water at zero degress celcius?
Calculate the work in Joules when 2.5 mols of water vaporizes at 1 atmosphere pressure and 25 degrees C. The work is done in pushing back the atmosphere.
Draw the kekule structure of each of the following compounds. if cis/trans isomers exist, draw both and indicate the geometry of each.
you have a hydrochloric acidsolution with a pH of 1.8. How many mL of sodium hydroxide with a pH of 11.8 would be used to neutralize 20.0 mL of the acid solution.
Each carbon-oxygen bond is somewhere between a single and a double bond. 3.Each oxygen atom has a double bond 50% of the time 4. The actual structure of formate is an average of the two resonance forms
What is the new freezing point of a solution with 100.g of CaCl2 in every kg of water? The Kf of water is 1.86 degrees celsius/m. Solve the problem.
What are the units of the second order and third order rate constants for rate laws expressed in pressures in Pascals and concentration in molecules per cubic meter
Write a brief discussion of the bond dipoles of iodomethane and the corresponding Grignard reagent.
container at a temperature of 47C exerts a pressure of 6.3 atm. Calculate the number of moles in the sample
When heated to 350 degrees C at 0.950 atm, the ammonium nitrate decomposes to produce nitrogen, water, and oxygen gases; 2NH4NO3(s) delta--->2N2(g)+4H2O(g)+O2(g):
A 4.00 g sample of the metal nitrate M(NO3)2, in which M is an unknown metal was dissolved in water and treated with excess aqueous sodium sulfate. The sulfate salt that is formed in the reaction weighed 3.318 g. Determine the identity of the meta..
A block of zinc has a density of 7.133 g/cm^3 and atomic weight of 65.39 g. A) Calculate the atom density of the zinc. B) Find the macroscopic thermal neutron absorption cross section for zinc, assuming that microscopic cross section for absorptio..
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