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What is the value of the rate constant for a reaction in which 75.0 percent of the compound in a given sample decomposes in 85.0 minutes? Assume first order kinetics.
A buffer is to be prepared by adding solid sodium acetate to 0.10 M CH3COOH. Which of the following concentrations of sodium acetate will produce the most effective buffer
61.5 mL of 0.11 M sodium hydroxide were required to completely neutralize 23.7 mL of sulfuric acid. Calculate the concentration of the sulfuric acid solution
Allicin is the compound responsible for the characteristic smell of garlic. An analysis of the compound gives the following percent composition by mass: C: 44.4%; H: 6.21%; S:39.5%; O: 9.86%. What is its empirical formula
when 2.45 g of an unknown weak acid ha with a molar mass of 85.0g mol is dissolved in 250.0g of water the freezing
For the reaction Fe(OH)2(s)+H2O2(aq) -> Fe(OH)3(s), the reduction reaction is H2O2 -> 3OH-. The book states that the O2 from the H2O2 has a -1 charge and the OH from the Fe(OH)3 is -2.
the empirical formula for acetic acid is ch2o. its molar mass is 60 gmol. the molecular formula isa. c2h4o2b. c2ho2c.
using a solution that is prepared nbspby dissolving .702g of fenh42so42middot6h2o in 50ml of h2o having 1 ml of
Consider the case of 10 oscillators and eight quanta of energy. Determine the dominant configuration of energy for this system by identifying energy configurations and calculating the corresponding weights. What is the probability of observing the..
heat capacity of the calorimeter which is 10.17kJ/Degree Celsius and the temperature rose 105 Degrees Celsius. How many FOOD CALORIES does this cookie contain?
a close chemical relative of the banned insecticide ddt is methoxychlor c16h15cl3o2. methoxychlor is currently used as
A 10.0 mL sample of liquid bleach is diluted to 100. mL in a volumetric flask. A 25.0 mL aliquot of this solution is analyzed using the procedure in this experiment. If 12.1 mL of 0.30 M Na2S2O3 is needed to reach the equivalence point, what is th..
although not a transition element, lead can form two cations: Pb2+ and Pb4+. write the formulas for the compounds of these ions with the chloride ion.
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