What molar ratio of ch3cooh to ch3coona should be used
What molar ratio of CH3COOH to CH3COONa should be used, suppose you are asked to go into the lab and prepare an acetic acid -sodium acetate buffer solution with a pH of 4.00 ±0.02.
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Determine the numbers of pounds of carbon dioxide are produced from burning one gallon of gasoline? Assume gas is 100% octane and the density of octane is 0.78 g/ml. Demonstrate the balanced reaction with your calculations.
Use one-mean z-interval proedure to determine the confidence interval for the mean of the population from which the sample was drawn. sample mean = 25, n= 36, standard deviaton =3, and confidence level = 95%
(i) Determine the integer n which explains the harmonic whose frequency is 415.0 Hz? (ii) Determine the length of the tube?
A 27.6 ml volume of chlorine gas is collected over water at the 23C and 750 torr. The vapor pressure of water is 21 torr. The mass of the gas is 78.4 mg.
(i) Determine the average horizontal component of the force which the ground applies on the runner's shoes?
Determine the minimum concentration of the Mg2+ that must be added to the 0.10 M NaF in order to initiate a precipitate of the magnesium fluoride (for MgF2, Ksp = 6.9 x10-9)
Skech a graph. Which confidence interval yields a more precise estimate of the population mean? Explain your answer.
Explain what would the pressure in the bulb be, in mmHg, if the number of moles were reduced to 8.51x10e-4 mol?
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