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Calculate the molarity of a solution made by dissolving 12.1 grams of Na2CrO4 in enough water to form exactly 590 mL of solution.
An unnormalized wavefunction for an electronin a carbon nanotube of length L is sin(2pix/L). Normalize this wavefunction.
A zero-order reaction has a constant rate of 2.00×10-4 . If after 50.0 seconds the concentration has dropped to 6.00×10-2 , what was the initial concentration?
Calculate approximately the value for the heat of sublimation of methane and calculate the pH for this solution
consider the following reaction at equilibrium: N2(g)+O2(g)+heat 2NO(g). indicate how each of the following will shift the equilibrium: a)raising the temperature of the reaction. b)decreasing the volume of the reaction container. c)adding a cataly..
A 60.0 g sample of an alloy was heated to 96.0 °C and then dropped into a beaker containing 87.0 g of water at 24.1 °C. The temperature of the water rose to a final 27.63 °C.
A 50.00mL solution of 0.100M Cd2+ is titrated with 0.100M EDTA buffered at a pH of 7.2. What is the Cd2+ concentration at the equivalence point. Kf CdY2-= 2.9e16, Ka1 EDTA= 1.02e-2, Ka2 EDTA= 2.14e-3, Ka3 EDTA= 6.92e-7, Ka4 EDTA= 5.5e-11
To prepare 5.0 L of a 3.50 M solution of Potassium Hydroxide (KOH), how many grams of Potassium Hydroxide must be used?
A graduated cylinder contains 148 of water. A 17.0 piece of iron (density = 7.86 ) and a 19.0 piece of lead are added. What is the new water level in the cylinder?
heat is generated at a volumetric rate of q in a rod of radius r0 and length l. half the cylindrical surface length is
Lactic acid, C3H6O3, is a monoprotic acid that is available in solid form. Determine the concentration of an unknown solution of sodium hydroxide
Suppose you had samples of 1-bromo-3-methylbutane and 2-bromo-2-methyl butane. Choose reaction conditions that will enhance the rate of substitution and decrease the rate of elimination for each.
if 0.11 g of h2o2 decomposes in a 2.50 l flask at 25 degrees celcius what is the pressure of o2 and
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