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Consider a 20.0% (m/v) solution. How can this be written as a conversion factor? * 20.0 g of solute/ 100 mL of solution * 20.0 g of solute/ 80 g of solution * 20.0 g of solute/ 100 g of solution * 20.0 g of solute/ 80 mL of solution
Fe3O4(s) + 4CO(g) --> 4CO2(g) + 3Fe(s). In this reaction, if 335.2 g Fe3O4 is reacted with excess CO, what mass of CO2 will be produced.
A gas is collected over water at a certain temperature. The total pressure is 762 torr. The vapor pressure of water at this temperature is 17 torr.
Hydroxyl radical (OH) is produced from the photolysis of H2O or through reaction with excited oxygen, H2O + hν --> H + OH or O* + H2O---> 2OH
Methane and hydrogen sulfide form when 36g H2 reacts with carbon disulfide. calculate the percent yield if the actual yield of CH4 is 69.8 g
Table salt and sugar are accidentally mixed A 4.90 g sample is burned and 2.20-g of CO2 is produced What is the mass percentage of salt in the mixture?
Minimal energy cost of H2S conversion to hydrogen and sulfur in gliding-arc is 1.6 eV/molec
The venom of biting ants contains formic acid, HCOOH (Ka=1.80*10^-4 at 25 C). What is the pH of a 0.0065 M solution of formic acid?
Given a free energy change for a reaction of -0.125 kcal/mol, what is the equilibrium constant at 18 degrees C (r=8.314 J/mol*K)
Carbon tetrachloride may react with oxygen to produce chlorine and carbonyl chloride.2CCl4(g) + O2(g) 2COCl2(g) + 2Cl2(g); Kc = 9.9 × 10^51. What is Kc for the following equilibrium?COCl2(g) + Cl2(g) CCl4(g) + ½O2(g)
Choose one of the non-heme based oxygen transport proteins (i.e. not hemoglobin or myoglobin). Sketch the oxygen binding site environment, indicating the likely mode by which oxygen coordinates
Identify the reagents you would need to make the following substance via Grignard synthesis, and briefly describe your synthetic strategy.
Calculate G°f (kJ mol -1) for glycerol and G°rxn (kJ mol -1) for the combustion of one mole of glycerol
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