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What is the formula of precipitate if 6M NaOH is added slowly to a solution containing Chromium (III)
Consider an aqueous solution that is saturated with lead iodide, lead sulfate and 0.10 M K2SO4 (a strong electrolyte). Write mass and charge balance equations that describe the system
A bioengineer preparing cells for a cloning experiment bathes a small piece of rat epithelial tissue in a TRIS buffer, (HOCH2)3CNH2. The buffer is made by dissolving 44.0 g TRIS (pKb = 5.91) in enough 0.065 M HCl to make 1.00 L of solution.
Describe how would your result be affected if you added the NaOCl solution in 10 seconds rather than 1ml/minute
Calculate the minimum mass of hydrochloric acid that could be left over by the chemical reaction. Be sure your answer has the correct number of significant digits.
using henrys law calculate the molar concentration of rm o2 in the surface water of a mountain lake saturated with air
For the reaction Cl2 + 2KBr -> 2KCl + Br2, calculate the percentage yield if 200 g of chlorine react with excess potassium bromide to produce 410 g of bromine
At a certain temperature the vapor pressure of pure benzene and pure toluene are 380 torr and 130 torr, respectively. If 7.50 mol benzene is mixed with 6.64 mol toluene
which is an aqueous solution of acetic acid, HC2H3O2 , requires 24.5 mL of 0.450 M NaOH to reach the endpoint in a titration. What is the molarity of the acetic acid solution
Amitriptyline is a tricyclic antidepressant that is also a weak monoprotic base. A clinical chemist wishes to extract this drug with chloroform from a blood sample for analysis
a 0.456 gram sample of an unknown mono- protic acid lets call it hz was dissolved in some water you pick the amount.
explain why there is a difference in spectrophotometric response during titration before and after the equivalence point by placing the statements below into the appropriate categories.Now, calculate the concentration of apotransferrin present in ..
calculate the change internal energy (E) for a system that is giving off 45.0kJ of heat and is performing 855J of work on the surroundings.
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