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For detection using Fluozin-3, what is the excitation wavelength that should be used? For Zincon detection of zinc and copper, what pH range agent do, and why would it be useful for metal detection?
Thermal decomposition of 5.00 metric tons of limestone to lime and carbon dioxide requires 9.00 x 10^6 kJ of heat.
If a 220 mg piece of gold (density =19.32 g/cm^3) is hammered into a sheet measuring 2.3x1.0 ft, what is the average thickness of the sheet in meters?
At 2000C Kc is 2.4^3 for 2NO N2+O2, the initial concentration of NO is .170M what is the equilibrium concentration of NO?
the hydrated radius of hemoglobin is found to be 3.55 nm. How many water molecules hydrate a hemoglobin molecule?
An aqueous solution i s10.0% glucose by mass and has a density of 1.039g/ml at 20 degree Celsius. Calculate the freezing point and the normal boiling point of this solution
An oxyacetylene flame is often used in the welding of metals. Estimate the flame temperature produced by the reaction. 2C2H2(g) + 5O2(g) --> 4CO2(g) + 2H2O(g)
Hydroxyl radical (OH) is produced from the photolysis of H2O or through reaction with excited oxygen, H2O + hν --> H + OH or O* + H2O---> 2OH
Question about Thermochemistry, Consider the reaction: H2(g) + Cl2(g) yields 2HCl(g) Change Heat = -184.6
What is the pH of a 1L buffer containing 1.5M Acetic Acid and 1.0M Sodium Acetate? What is the pH of the buffer when 0.5 moles of NaOH is added to solution? Assume no change in volume.
What is the expected theoretical yeild of aspirin based on exactly 1 g of salicylic acid and 3.50 mL of Acetic Anhydride (Density = 1.082 mL^-1)
Sunflower oil contains 0.070 mol palmitic acid (C16H32O2)/mol, 0.060 mol stearic acid (C18H36O2)/mol, 0.29 mol oleic acid (C18H34O2)/mol, and 0.58 mol linoleic acid (C18H32O2)/mol. To create margarine from sunflower oil, the liquid oleic and linol..
Solute S has a partition coefficient of 6.1 between water (phase 1) and hexane (phase 2). A 74.0 mL solution of S in water is extracted six times with 12.0 mL of hexane. Calculate the fraction of S remaining in the aqueous phase.
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