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What is an isosbestic point? Why is not used to calculate the [HIn] ,[In-] and the pKa of the bromophenol blue indicator?
one hundred grams of water is saturated with nh4cl at 50degc. according to table g if the temperature is lowered to
State the chemical equation for the acid base reaction between sodium hydroxide and (+) tartaric acid.
Assuming the turbine is well insulated, what is the maximum power that can be generated by the turbine?
With the pure solvent in the light path, the meter reading is 78; with a 0.1 M solution of a solute in the same solvent, the meter reading is 55. The light path is 0.5 cm. Calculate the absorbance, the transmittance, and the molar absorption coeff..
Two hydrogen atoms interact to form a hydrogen molecule. Classify the following statements that describe the stages of bond formation in a hydrogen molecule according to the predominant force existing between the two hydrogen atoms.
what is the concentration of glyceraldehyde-3-phosphate? Assume a temperature of 25.0 °C. The constant R = 8.3145 J/(mol·K)
Magnesium metal reacts with HCl solution, liberating H2 gas and generating Mg2+ cations in solution. A 2.965-g sample of Mg metal is added to 75.0 mL of a 4.00 M HCl solution, and the reaction goes to completion. How many grams of H2 are formed
What is the relationship between K and Kc?
Calcule the platinum electrode potential (vs. NHE), immersed in solution containing 0.50 M Br2 KBrO3 0.20 M at pH = 2.5
Compute the molar volume of carbon dioxide at 450K and 25atm, given that the second viral coefficient (B) of CO2 is -0.0605 L/mol. Contrast on result with that obtained using the ideal gas equation.
The decomposition of a compound, A, to form B + C is known to be a first order reaction. If the half-life of the reaction is 5.93 minutes at 65 °C, what is the value in min-1 of the rate constant for the reaction at this temperature
What is the emf of this cell when [Ce4+]= 2.5 M , [Ce3+]= 1.9×10-2 M , and [Cr3+]= 1.1×10-2 M?
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