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A molecule of ethyl alcohol is converted to acetaldehyde in one's body by zero order kinetics. If the concentration of alcohol is 0.018 mol/L and the rate constant = 6.4 ´ 10-5 mol/L·min, the concentration of alcohol after 3.6 hours will be mol/L.
500 mL of 0.1 M NaOH is added to 585 mL of 0.25 M weak acid (Ka = 2.21 x 10^-5). What is the pH of the resulting buffer?
what mass of ammonium chloride can be added to 100 grams of water at 20 degrees C before the solution becomes saturated
The vapor pressures of pure benzene and pure toluene at 25 C are 94.2 torr and 28.4 torr, respectively. Assuming ideal behavior
What is the boiling point of the solution produced by adding 363 g of ethylene glycol (molar mass = 62.1 g/mol) to 1.5 kg of water? For each mole of nonvolatile solute, the boiling point of 1 kg of water is raised 0.51°C.
Compare the percent ionization of the base in (a) with the percent ionization of the base in (b).
Write a brief procedure that would have been used to carry out the titration. Just include the key steps (terms and measurements). c. What was the average volume of Ca(OH)2 used? d. Calculate the concentration of the HCI sample.
What is the density of a block of unknown material with a mass of 18.63-g if the dimensions are.
A large pond is 300m by 95m with an average depth of 2.5m. Assuming that the pond is saturated with oxygen, calculate the amount of sugar (C12H22O11) in kg that would be sufficient to completely consume the dissolved oxygen.
A student is given chloroacetic acid as an unknown weak acid. Calculate the number of milliliters of 0.100 M NaOH required to reach the equivalence point in titration of 0.4840 grams of this acid
A 100 g sample of an unknown liquid absorbs 2000 J of heat energy, raising the liquid's temperature from 50 ?C to 70 ?C .What is the speci?c heat capacity of this liquid.
Convert lb mol CaC2 feed to lb and calculate lb inerts added. The total lb solids in the slurry is then the sum of the Ca(OH)2 plus inerts. In calculating the water added, remember that some is consumed in the reaction.]
Titration of a Weak Acid with a Strong Base, Find the pH before, at, and after equivalence point of 35 ml of 0.15 M lactic acid with 0.18 M NaOH.
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