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Problem- 14.0 moles of gas are in a 5.00L tank at 20.0?C . Calculate the difference in pressure between methane and an ideal gas under these conditions. The van der Waals constants for methane are a=2.300L2? atm/mol2 and b=0.0430 L/mol.
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A sample of HCl gas is placed in 326mL flask where it exerts a pressure of 67.5 mmHg. What is the pressure of this gas sample if it is transferred to a 135mL flask at the same temperature?
Calculate the molar mass of the unknown. Assume that the molal freezing point depression constant of water is 1.86C kg/mol and that the freezing point of water is 0.00C.
Problem- Ksp for SrSO4 increases from 2.8 x 10^-7 at 37 degrees celsius to 3.8 x 10^-3 at 77 degrees Celsius. Is the dissolution of SrSO4 exothermic or endothermic
Define what is the pH of the solution when 18.30 mL of 0.137 M trisodium hemimellitalate (trisodium benzene 1,2,3, tricarobxylate) is mixed with 25.00 mL of 0.274 M HNO3 (to two d.p.)
determine a value of kc for the equilibrium which is established when ethanol reacts with ethanoic acid.ch3cooh
So which ATOMS are electron donating and electron withdrawing, and what does electron withdrawing have on the stability of a cation and anion, what does electron donating have on a cation and anion
Kc for this reaction is 5.1 at 400 degrees C. Calculate the equilibrium concentrations of the four gases if the initial concentration of each of them is 0.050M.
The difference between PCC and chromic anhydride. are they the same reagents? how are they different. what is the mechanism like.
The change cannot be determined without more specific information. It will remain constant. It will decrease by a factor of 2. It will decrease by a factor of 4.
a 1.00m solution of nitrous acid hno2 had a ph of 2.07.a write a balanced equation showing how nitrous scid hno2
a gaseous reaction occurs at a constant pressure of 30.0 atm and releases 58.0 kj of heat. before the reaction the
Compute the average rate of decomposition of H2O2 between0 and 2.16 x 104 s. Use this rate to compute the average rate of production of O2 (g) over the same time period.
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