What is the rate constant for this reaction
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 balloon is filled to a volume of 7.0 102 mL at a temperature of 39.0°C. The balloon is then cooled at constant pressure to a temperature of 1.00 102 K. What is the final volume of the balloon?
The plates of a parallel plates capacitor are 5mm apart and2m2 in area,the plates are in a vacum.a potential difference of 10000 volts is applied across the capacitor.calculate.(1)the capacitance,(2)the charge on each plates,(3)the electric
A 100 mL sample of the dilute solution was found to contain 0.021 moles of Pb2+. What was the concentration of Pb(ClO3)2 in the original undiluted solution?
The hydrogen spectrum has a red line at 656 nm and a blue line at 434 nm. What is the first order angular separations between these two spectral lines obtained with a diffraction grating that has 4500 lines per centimeter?
Ultisols are an important soil order in this group of soils. Describe the typical profile of this soil order paying particular attention to features that directly influence soil and water management . Indicate how these features may influenceland
A sample of magnesium metal will combust completely in air according the following reaction:
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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Based on information provided in Ch. 11 & 12, how do you define "being an adult"?
Lifespan psychologists are unlikely to investigate both changes as well as consistencies that exist in different individuals'
What is another way to say ". It is important to ensure that the youth understand what the study involves, what their participation entails
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Identify and discuss three ethical guidelines that are important to consider when designing an 8-week group for adolescents who are referred
Provide five (5) reasons why working from a person centred, strengths-based positive framework, and providing positive lifestyle strategies can reduce
Working in the yard, you feel unpleasantly hot and sweaty when you come in the house, so you take a shower and begin to feel better.