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Luminol has a molecular weight of 177 g/mol. The forensic technician at a crime scene has just prepared a luminol stock solution by adding 10.0 g of luminol into a total volume of 75.0 mL of H20.What is the molarity of the stock solution of luminol?
A saturated solution of Na2SO4 with excess of the solid is present in equilibrium with its vapor in a closed vessel. Calculate the number of degrees of freedom, f, of the system.
Silver iodide is an extremely insoluble yellow solid. What would you expect to observe when (CH3)3Cl and AgNO3
Calculate the equilibrium constant at 24 K for a reaction with ?Ho = 10 kJ and ?So = (-100) J/K. (Don't round unil the end. Using the exponent enlarges any round-off error.)
In C7H8BrNO there are 4 degrees of saturation. Will an open chain structure with 2 triple bonds exist? Open chain with 2 triple bonds. Is this incorrect. Is it too unstable to exist or is it possible.
Mg3N2 + 6H2O ----> 3Mg(OH)2 + 2NH3 When 36.0g of H2O react, how many grams of NH3 are produced?
at 700ordmc keq 0.0152 for the following reaction2so2g o2g 2so3gwhat is numerical value of the equilibrium constant
Determine whether a solid forms when solution containing the following salts are mixed. If so, write the ionic equation and the net ionic equation. a) NA3PO4 and AgNO3 B) K2SO4 and K2S
Consider a cylindrical container partially filled with ethanol (C2H6O). Using the model in which ethanol vapor pressure is a result of equilibrium between the rate of ethanol evaporation and condensation.
How much time (in s) is needed for NOCl originally at a concentration of 0.0194 M to decay to 0.0026 M
1. why should the funnel be removed from the top of the burette while titration is being berformed?2. while the
A titration of sulfates in a 5.00 mL sample of drinking water with 10.0 mM (millimolar) of barium acetate as the titrant is carried out. A microflow pump was used instead of a buret
As a scuba diver descends under water, the pressure increases. At a total air pressure of 2.89 atm and a temperature of 25.0 celcius, what is the solubility of N_2 in a diver's blood?
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