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a) For a weak acid (e.g., CH3COOH) that is titrated with a strong base (e.g., NaOH), what species (ions/molecules) are present in the solution at the stoichiometric point?
b) For a weak acid (e.g., CH3COOH) that is titrated with a strong base (e.g., NaOH), what species (ions/mmolecules) are present in the solution at the halfway point in the titration toward the stoichiometric point?
sulfuric acid (H2SO4) by mass has a density of 1.221 g/mL. Determine the molarity of the solution.
Explain the structure for 4-ethyl-2,3-dimethyl-2-heptene?
A student studied the clock reaction described in this experiment. She set up Reaction Mixture 2 by mixing 20 mL of 0.010 M KI, 10 mL 0.001 M Na2S2O3, 10 mL 0.040 M KBrO3, and 10 mL 0.10 M HCl using the procedure given. It took about 45 seconds fo..
An organic acid contains 41.4% carbon, 3.47% hydrogen, and 55.1% oxygen by weight. A 0.080-mol sample of this compound weighs 11.60 g. What is the molecular formula of this acid
Claculate the potential for this cell, Ecell, at 25 degree Celsius. Can a reaction be spontaneous at 298 K when its delta Grxn (298 K) is positive
Why is it advisable to run a mixed melting point determination on samples of two different compositions before concluding that the two compounds are identical
Suppose that you have 0.500 L of each of the following solutions, and an unlimited supply of water. (Note: C9H7NHBr is a salt containing the ions C9H7NH+ and Br- and C9H7N is quinoline
the specific heat of aluminum 0.22 calg degrees c. determine what would be the final temperature if thirty grams of al
Which of the following substances is more likely to dissolve in liquid CS2. a). Sodium Iodide b). Lithium Iodide c). Iodine d). Potassium iodide
Methane and oxygen react to form carbon dioxide and water. What mass of water is formed if 3.2 g of methane reacts with 12.8 g of oxygen to produce 8.8 g of carbon dioxide
a sample of n2o4g is placed in an empty cylinder at 25oc. after equilibrium is reached the total pressure is 1.5 atm
An athlete wants to acquire red blood cells from a donor with the same blood type. Taking into consideration that blood is composed of three components, plama, red blood cells, and leukocytes. what instrument have used in our lab experiments that ..
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