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The reversible conversion of phosphorus pentachloride gas into phosphorus trichloride and chlorine gases has Kc = 2.68 at exactly 340oC. If 8.42mmol PCl5 are placed into a 125ml flask, what will be the partial pressures of each component at equilibrium
Calculate the percentage yield if 0.2 moles of H2O was formed when 0.6 mol of methane
Chemical Kinetics - Predict the rate law of a reaction based on the mechanism of the reaction - What is the overall reaction and Predict the rate law based on the mechanism.
The electrode of a pH meter is placed in a sample of urine and a reading of 7.9 is obtained. Is the sample acidic basic, or neutral? What is the concentration of H3O+ in the urine sample?
What is the dissociation constand, Kd, of a ligand with a percent occupancy
What are the differences between sub-energy levels and orbitals? (My professor said they were different.)
The density of water = 1.000 g/mL. The liquid's final volume is not changed by adding the solid. The calorimeter loses only a negligible quantity of heat.
How much heat is evolved in converting 1.00 mol of steam at 130.0 C to ice at -50.0 C? The heat capacity of steam is 2.01 J/g*C and of ice is 2.09 J/g*C.
In a titration experiment, a 12.5 mL sample of 0.0500 M KOH neutralized 14.7 mL of HNO3 solution. Calculate the molarity of the HNO3 solution.
the osmotic pressure produced by the solution was 0.138 atm . What is the molar mass of the protein(g/mol)?
buffer solution that has [H2PO4-] =[HPO42-] = 0.132M What is the pH of the solution before adding the NaOH? After adding the NaOH?
If 2.45 g of N2H4 reacts and produces 0.650 L of N2, at 295 K and 1.00 atm, what is the percent yield of the reaction?
A 0.3500 g sample of brass is analyzed by the procedure in the above exercise. The Beer's Law constant for the copper ammonia complex is determined to be 7.50 x 10^-1 mL/mg.
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