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At a certain instant of time an an automobile is rounding a curve. Its acceleration in its direction of motion is 3.77 m/s 2 and its centripetal acceleration is 5.6927 m/s 2 . What is the angle that the total acceleration makes at that instant with respect to the direction of motion at that instant? Answer in units of.
Cyclohexane undergoes additional reaction with benzine, but benzene does not. Instead benzene undergoes a substitution reaction with bromine. Explain.
consider the titration of 50.0 ml of 0.217 m hydrazoic acid hn3 ka 2.6 x 10-5 with 0.183 m naoh. calculate the ph of
A 1.45 g sample of an iron ore is dissolved in acid and the iron obtained is (aq). To titrate the solution, 21.6 mL of 0.102 M KMnO4(aq) is required. What is the percent of iron in the ore? Hint: calculate moles of iron then mass of iron then % ir..
After the addition of a large excess of the acid solution (in comparision with the acid volume needed to reach the equivalence point). Tell how many milliliters of acid are required to reach the equivalence point.
Explain why the fluoride ion of the terabutylammonium flouride is more nucleophilic than the fluoride ion of sodium fluoride. Draw reaction-energy diagrams. Define the term, "diastereospecific reaction," and give a representative example.
From the same container under the same conditions--same temperature and initial pressure, it takes 385 s for 7.00 L of O2 gas to effuse. Calculate the molar mass (in grams/mol) of the unknown gas.
What would the potential of a standard hydrogen (S.H.E.) electrode be if it was under the following conditions?
A 45g piece of ice at 0 degree C is added to a sample of water at 21 degree C. All of the ice melts and the temp of water decreases to 0 degree C. How many grams of water where in the sample?
Tin (Sn), with a mass number of 127 and an atomic number of 50, decays by beta emission. Identify the product of the nuclear reaction by providing its atomic symbol (2 points), mass number (2 points), and atomic number
Since cereal sample may have other materials other than Fe that absorbs light. Using cereal sample as the blank can eliminate these absorption so that the transmittance was solely due to Fe.
Which condition characterizes the stoichiometric point of any acid/base titration? a) equivalent molar amounts of acid and base have reacted. b) The pH is exactly 7.0 c) The indicator changes from pink to colorless
Given the concentration of organic carbon in a soil sample and the soils bulk density, be able to calculate the mass of organic carbon
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