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Effects of solvent water on the photophysical properties of a series of meta- and para-substituted anilines have been investigated by means of time-resolved fluorescence, transient absorption, and photoacoustic measurements.
Why does bromine add faster to a disubstituted double bond than a monosubstituted double bond to produce dibromides
What mass of Au is produced when 18.6 ampere of current are passed through a gold solution for 29.0 minutes.
What is the percent ionization of a 0.060 M solution of benzoic acid ( a monoprotic acid with Ka= 6.5 * 10^-5)
Consider a solution that contains 72.0% R isomer and 28.0% S isomer. If the observed specific rotation of the mixture is -41.0°, what is the specific rotation of the pure R isomer
what change in the number of moles of Ag occurs in the system? (2)what change in the concentration of Ag occurs in the system?
What combustion products are produced when materials made from polyacrylonitrile smolder and burn?
Assuming that all of the carbon dioxide ends up in the balloon, what will be the volume of the balloon at a temperature of 24 C and a pressure of 758 mmHg
How would you make a buffer with a volume of 2.0 L, pH of 5.0 and a strength of 0.25 M using 5.0 M acetic acid stock solution (Ka = 1.8x10-5) and sodium acetate ( NaO2C2H3 available as a solid salt FW = 82 g/mole).
the absolute entropies of the solid and liquid metal are 24.0 and 66.2 J/K.mol, respectively, at the melting temperature. Calculate the melting point of the metal
Assuming that seawater has a total ion concentration (a.k.a colligative molarity) of 1.10 Mc, calculate how many liters of seawater are needed to produce 25.9 L of fresh water at 20 °C with an applied pressure of 65.0 bar.
It is possible to define metallic character as we do in this book and base it on the reactivity of the element and the ease with which it loses electrons.
The concentration of K+ in blood plasma is about 0.0050 M. The high internal concentration in cells is maintained by pumping K+ from the plasma. How much work must be done to transport 1.0 mol K+ from the blood to the inside of a muscle cell at 37..
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