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The formula of a complex formed by a reaction such as M + nX = MXn can be determined by the method of continuous variations. The absorbances of a series of solutions of varying composition are measured at the wavelength at which the complex shows its maximum absorptivity. The number of moles of M and X is kept constant, while the mole fraction of the reactants varied. The following data were obtained for the reaction of M and X. Solution A is 0.0100M and X ; solution B is 0.0100 M and X Sol.# mLA mLB Absorbance 1 10 0 0 2 9 1 0.133 3 7 3 0.4 4 5 5 0.667 5 3 7 0.932 6 2 8 0.8 7 1 9 0.4 8 0 10 0 Plot the absorbance vs mole fraction of the X and calculate the formula of the complex from the mole fraction at which the maximum absorbance is obtained
If 19.0 mL of 0.800 M HCl solution are needed to neutralize 5.00 rm mL of a household ammonia solution, what is the molar concentration of the ammonia?
In an aqueous solution that contains 285 mg of trichloroacetic acid (HA), Cl3CCOOH (163.4 g/mol) in 10.0 ml. Calculate: 1) Analytical molar concentrations of HA species
Calculate the vapor pressure of a solution containing 25.3g of glycerin C3H8O3 in 125mL of water at 30.0C. The vapor pressure of pure water at this temperature is 31.8torr}
Here is the question and I need help showing the whole problem and solution. It says: Solid Chromium (III) Sulfide is placed in a test tube and mixed with water
if you are performing both an atmospheric distillation and a vacuum distillation in the same experiment: a. The atmospheric distillation is done first.
Common sugar or sucrose is a nonvolatile substance of formula C12H22O11. Two teaspoons of sugar in a cup of coffee correspond roughly to 10 g of sugar dissolved in 200 g of water. What is the MOLE FRACTION of sugar in such a solution
Suppose that the molar concentrations for CO and H2 at equilibrium are [CO] = 0.05 M and [H2] = 0.08 M. Use the formula Kc[CO][H2]^2 to calculate the concentration of . Express your answer to one decimal place and include the appropriate units.
at what temperature should the tube be maintained to have a partial pressure of 1.0mm of O2 in the exit gas? Assume that the total pressure of the gas in the tube is 1.30atm.
A white precipitate formed with barium chloride, BaCl2: what is the chemical equation for the reaction of the reagent with the ion
A certain carbon-hydrogen compound contains 89.94% C by mass and the remainder is hydrogen. What is the empirical formula
Compute the final temperature of the solution assuming no heat lost to the surroundings .the solution has a specific heat capacity =4.18 J/°C·?
Metals such as magnesium and zinc react with dilute sulfuric acid to give hydrogen, according to the equation: M (s) + H2SO4 (aq) -------> MSO4 (aq) + H2 (g) When 5.00 g of a mixture of powdered magnesium and zinc were dissolved in diluted sulfuri..
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