An anionic living polymerization of styrene
An anionic living polymerization of styrene is conducted with an initial monomer concentration of 2 mol/L and an initial initiator concentration of 0.001 mol/L. Determine Mn, Mw, and PDI at 75% conversion.
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A paper clip is made of 0.05-in diameter wire. If the original material from which the wire is made is a rod that had a diameter of 0.70-in.
a sample of calcium carbonate abosorbs 45.5 J of heat, upon which the tempterature of the sample increases from 21.1 degrees of C to 28.5 degrees of C. What is the specific heat of calcium carbonate?
C6H6 + Br2 → C6H5Br + HBr a) What is the theoretical yield of bromobenzene in this reaction when 30.0 g of benzene reacts with 65.0 g of bromine? b) If the actual yield of bromobenzene was 56.7 g, what was the percentage yield?
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A 15.0 grams lead ball at 25.0 celcius ws heated with 40.5 Joules of heat. Given the specifc heat of lead is 0.128 J/ grams. celsius, what is the final temperature of the lead?
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The power of the national government has expanded a great deal in the last two centuries. There are legitimate arguments to be made that the national government
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