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A dilute electrolyte solution is prepared by dissolving iron(III) chloride in water. It is found to have a freezing point of -1.90 degrees C
Calculate the Root Mean Square Speed and its average kinetic energy per molecule of Nitrogen and water vapor
A stream of oxygen was passed at a rate of 20mL per minute at S.T.P. for 1 hour through a silent electric discharge followed by a gas-washing bottle containing aqueous ammonium iodide
Exactly 500.00mL of 1.000M perchloric acid is used to dissolve 22.10g of the mineral malachite, Cu2CO3(OH)2 (molar mass=221.0g/mol). What volume of 1.000M sodium hydroxide, is necessary to completely neutralize the excess acid?
Half-life of first order process, A reactant undergoes a dissociation reaction A r arrow 2B which follows first order kinetics. The initial concentration of reactant A is .4000
Calcium sulfide has a face-centered cubic unit cell with calcium ions in octahedral holes. If the radius of sulfide ion is 184pm and the density of CaS is 2.60 g/cm3.
A scientists places 4.00 moles of Argon, Ar (g) and 2.00 moles of Helium, He (g) into a flask at the temperature of 298 Kelvin and measures the pressure to be 3.00 atm. calculate the pressure due to Helium gas?
An automobile gasoline tank holds 21 of gasoline. When the gasoline burns, 84 of oxygen is consumed and carbon dioxide and water are produced. What is the total combined mass of carbon dioxide and water that is produced?
A gas expands and does P-V work on the surroundings equal to 285 J. At the same time, it absorbs 216 J of heat from the surroundings. What is the change in energy of the system?
what would the rate constant be at a temperature of 150C for the same reaction described in Part A?
At 600 degrees C, the equilibrium constant for the reaction 2HgO(s) --> 2Hg (l) +O2 (g) is 2.8. Calculate the equilibrium constant for the reaction 1/2O2(g) + Hg(l) --> HgO (s)
Express your answer with the appropriate units. Indicate the multiplication of units explicitly either with a multiplication dot (asterisk) or a dash
What is the final pH of a solution that contains 0.1 M of H2N-CH2-CH2-NH3+ Cl- and 0.01 M of Cl- NH3+-CH2-CH2-NH3+. The pKa values of the compound are as follows; pKa1= 7.5 and pKa2= 9.5:
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