Explain the value of the acid dissociation constant ka
A 0.45 M solution of pentanoic acid (CH3CH2CH2CH2COOH) is found tohave a pH of 3.73 at 298K. What is the value of the acid dissociation constant Ka for this monoprotic acid?
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A distribution with a mean of µ = 38 and a standard deviation of s = 20 is being transformed into a standardized distribution with µ = 50 and s = 10. Find the new, standardized score for X = 18.
Determine (a) the temperature at which the normal stress in the aluminum bar will be equal to -90 MPa, (b) the corresponding exact length of the aluminum bar.
Organisational behaviour, only 2000 words, don't need too perfessionalDescription: Individual attributes and their effects on job performance. Modern organisations are dealing with key issues that mu
Changes in kinetic and potential energies are negligible. Calculate the heat transfer per kilogram of nitrogen flowing through the heater. Assume that nitrogen behaves as an ideal gas.
During the process, the pressure and specific volume are related by Pv=constant and the work has a magnitude of 32 kJ. Sketch the process on P-v diagram. Determine the heat transfer, in kJ.
A compound is 10.2% C4 (by mass). Theother 89.8% is Cl. When 23.6 of it is dissolved in 500g of camphor,the freezing point is depressed from 179.8oC to171.8oC.
A kindergarten class consists of 14 boys and 11 girls If the teacher selects a random sample of n = 3 children and the first two children are both boys, what is the probability that the third child selected will be a girl? Explain your response.
Many cigarette lighters contain liquid butane,C4H10(l). Using standard enthalpies of formation, calculate the quantity of heat produced when3.3 g of butane is completely combusted in air under standard conditions.
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Based on the chapter by Allen Furr on the sociology of mental illness, How do sociological models help you understand mental illness differently
Multiple Choice Question Identify a true statement about political systems controlled by men. Multiple choice question.
Jane is doing a study about tattoos. She is interested in studying the idea of the "tramp stamp" (a tattoo in the small of a woman's back).