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When the chain-growth polymerization is conducted in dilute and more concentrated solutions the resulting degrees of polymerization/molecular weights obtained are observed to be very different, with the polymer produced in dilute solution having a substantially higher Xn.Offer an explanation for the cause of this behavior.
A 75.0 mL volume of 0.200 M NH3 (Kb=1.8*10^-5) is titrated with 0.500 M HNO3. Calculate the pH after the addition of 13.0 mL of HNO3.
A basketball is inflated to a pressure of 1.50 atm in a 20.0°C garage. What is the pressure of the basketball outside where the temperature is -5.00°C?
Describe the various strategies for the excretion of nitrogenous wastes employed in higher animals (chordates), both human and non-human
How many Micromoles of A- and HA are present in the solution. If you now add 3mL of 1M NaOH, will you still have a valid buffer
an executive jet aircraft is in a rapid climb in a standard atmosphere. its time rate of change of altitude is 15 fts.
When calculating dilutions using M1V1=M2V2, derive an equation for the error in M2 using propagation of error (partial derivatives).
calculate pH at points between the start of titration and equvalence point: choose points so tht they will be more dense where change in pH is faster
Calculate the energy in kJ/mol of the electron when it is in the n= 1 level. If the energy change is negative, include the minus sign
when 31g of phosphorus reacts with oxygen, 71g of an oxide phosphorus is the product. What mass of oxygen is needed to produce 13g of this product?
During studies of the reaction below, 2 N2H4(l) + N2O4(l) ? 3 N2(g) + 4 H2O(g) a chemical engineer measured a less-than-expected yield of N2 and discovered that the following side reaction occurs
An isotonic solution contains 0.87 by mass per volume. Calculate the percent mass per volume for isotonic solutions containing each of the following solutes at 15. Assume a van't Hoff factor of 1.9 for all ionic solutes.
a 2.10-g sample of a large biomolecule was dissolved in 14.0 g of carbon tetrachloride. the boiling point of this
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