What is the molarity of the ethanol in this solution
A solution of ethanol (C2H5OH) in water is prepared by dissolving 77.0 mL of ethanol (density = 0.79 g/cm3) in enough water to make 275.0 mL of solution. What is the molarity of the ethanol in this solution?
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The rate constant k for a first order reaction is 1.36 * 10 -3 s -1 at 90 degrees Celcius and the activation energy is 78.4 kJ/mol. What is the rate constant for this reaction at 50 degrees Celcius?
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A sample of magnesium metal will combust completely in air according the following reaction:
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Consider a stable nocturnal boudary layer in a 12 hr night. The wind is blowing at 5 m/s and the surface is cooled with a kinematic heat flux of -0.02 K.m/s. The residual layer potential temperature is theta=25 degree centigrade.
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