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Suppose that in the reaction Q + R --> P, only the product, P, is colored. What happens to the absorbance at the analytical wavelength for P of the mixture as the reaction progresses? Suppose you do an experiment involving this reaction in which Q is present in large excess of R. If this reaction is first order with respect to R, would the graph of ln A for P versus time be straight line? Explain.
What is the concentration of chromium ion present in a 0.01976 M solution of potassium hydroxide in contact with a large excess
By using photons of specific wavelengths, chemists can dissociate gaseous H-I to produce H atoms with accurately known speeds. When H-I dissociates, the H atoms move away rapidly, whereas the relatively heavy I atoms move little. hint use the Aver..
In a laboratory class one student group found that 26.6% of A had isomerised after a period of 15.0 minutes when the temperature was maintained at 84.5 °C. What is the half-life in minutes of substance A at that temperature
Al possesses a specific heat of 0.90 J / gC. If 10 grams of Al are heated from 30 to 40 degrees C and subsequently dropped into water - with all its acquired heat transferred to 20 g of water - how many degrees does the water's temperature increas..
A reaction has a standard free energy change of -12.8 kJ mol^-1 (-3.059 kcal mol^-1). Calculate the equilibrium constant for the reaction at 25 degrees celcius.
cyclohexane has a freezing point of 6.50 c and a kf of 20.0 cm. what is the freezing point of a solution made by
Nitroglycerin is explosive, decomposing violently via the reaction: 4 C3H5N3O9 (s) ? 12 CO2 (g) + 6 N2 (g) + 10 H2O (g) + O2 (g) If 25.0g of nitroglycerin explodes in a 10.0 L rigid container, calculate the total pressure of all gasses present and..
question what is the initial temperature degc of a system that has thepressure decreased by 10 times while the volume
The solubility of calcium chromate is 1.56 * 10^-3 g/100 mL of solution. What is the Ksp for CaCrO4
Determine the fraction of the energy radiated by the sun in the visible region of the spectrum (350 nm to 700 nm). (Assume the sun's surface temperature is 5800 K.)
Because electron transport is coupled to ADP phosphorylation, it is theoretically possible to drive electrons backwards up the chain, against the potential gradient, at the expense of ATP.
The total heat of hydration of 1 mol of gas Li ions and Cl ions is -865 kJ. The lattice energy of LiCl is 828 kJ/mol. Calculate the heat of solution of LiCl.
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