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a. How would you prepare 100ml of 0.5M NaOH? Calculate the mass of NaOH needed, and describe the procedure and glassware you would use.
b. Considering all the glassware used in this experiment, what is the maximum number of significant figures possible in final result (concentration of NaOH)? Explain.
the enthalpy fusion of methanol is 3.16 kJ/mol. How much heat would be absorbed or released upon freezing 25.6 grams of methanol?
BaSO4 is listed as insoluble. Actually, BaSO4 is highly soluble, Ksp=1.1e-10. What is the solubility, in mg/l?
The combustion of 135mg of an unknown hydrocarbon produces 440mg of CO2 and 135mg of H2O. The molar mass of hydrocarbon is 270g/mol. determine the empirical and the molecular formulas of the hydrocarbon
Fe 2+(aq) + 6CN- (aq) -->/
To the same RNA solution, we added an equimolar amount of an RNA binding protein that binds to that RNA specifically. The protein has a molecular weight of 100,000 and contains 10 Trp and 10 Tyrosine residues
A 1.00 L balloon filled with nitrogen at 25 ° C and 765.3 torr is moved to a closed vessel with the pressure now at 659.3 torr and temperature 25 ° C.
Make the best match for each efficiency advantage to one mechanism for organizing enzymes in metabolic pathways. A. soluble enzymes in a lipid-enclosed volume
Calculate the concentration of chloride ions when 100.0 mL of 0.205 M sodium chloride is mixed with 250.0 mL of 0.150 M calcium chloride.
The Vehicle Assembly Building at the Kennedy Space Center in Florida has a volume of 3,666,500 m^3. Convert this volume to liters and express the result in standard exponential notation.
The volume of oxygen used was 747.0 milliliters at 1,092 K and12.00 atm pressure, Calculate the percentage by weight of graphitein the original mixture.
A heater burns propane (C3H8) using 30.0% excess air. Combustion is complete. The flue gas leaves at a pressure of 100 kPa and a temperature of 260°C. a. Calculate the flue gas composition
Describe why this is based on the wavelength range that is transmitted. What color would you see if you mixed the two solutions with ?max = 520 and ?max = 610?
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