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Question - Using 14C-labeled AIBN as an initiator, a sample of styrene is polymerized to a Mn (15,200 g/mol). the AIBN has an activity of 9.81*10^7 count min^-1 mol^-1 in a scintillation counter. if 3.22 g of the polystyrene has an activity of 203 counts min^-1, what is the mode termination?
I need proficient help to explain each and every step in detail of the above problems.
the standard reduction potential for the cu2+/cu redox couple is +.34V; that for h2o/H2, OH- at a ph of 7 is -.41V. For the electrolysis of a neutral 1.0M CuSo4 solution, write the equation for the half reaction occuring at the cathode at standard..
The base solution was added to the acid solution but was not stirred while temperature measurement were not made: c.) Some of the base splashed out of the calorimeter while pouring:
Question- What the standard thermodynamic quantities for CO2(s) at 25 degrees Celsius for Delta Hf^0, Delta Gf^0, S^0
Question- A solution is 0.001 M in Cr2O7 2- and 0.01 M in Cr3+. If the pH is 2.0, the potential of the half reaction will have this value: (ECr2O7/Cr3+ = 1.36 V)
Question- A compound contains only boron and hydrogen and is 78.1% boron by mass. A gaseous sample of the compound has a density of 1.05 g/L at 901 torr and 107°C. What is the molecular formula of the compound
Predict products and write the net ionic equation for the following reaction that occurs in aqueous solution. The spectator ion(s) is/are
a cylinder measuring 5.7 cm wide and 6.8 cm high is filled with gas. the piston is pushed down with a steady force
A typical home uses approximately 2000 kWh of energy per month. If the energy came from a nuclear reaction, what mass would have to be converted to energy per year to meet the energy needs of the home
The visible part of the hydrogen atom spectrum is called the Balmer series (n1 = 2). The violet line has a wavelength of 410.2 nm.
a standard of pb2 for an analysis using atomic absorption isprepared by first dissolving 1.0390 g dried pbno32 in
Consider the constitutional isomers 2-methylbut-1-ene, 2-methyl-2-ene and 3-methylbut-1-ene. when each of these alkenes is subjected to cataltic hydrogenation (H2, Pt), a single product results. which of the following best describes the structural..
Problem- A generic salt, AB3, has a molar mass of 315 g/mol and a solubility of 8.90 g/L at 25 °C. What is the Ksp of this salt at 25 °C
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