For polymerization of styrene in tetrahydrofuran at 25°C using sodium naphthlide as initiator, the rate coefficient for propagation is 550 dm3 mol-1 s-1 . If the initial mass concentration of styrene is 156 g/dm3 and that of sodium naphthalide is 3.02 x 10-2 g/dm3 , calculate the initial rate of polymerization and, for complete conversion of the styrene, the number average molar mass of polystyrene formed. Calculate, and comment upon, the value of the molar mass dispersity (Mw/Mn).

the answer is   c.) 1575 j.

explanation:

the answer to your question is c

answer : one can design an experiment using a liquid and an additive that can be added to the liquid and observe the chemical changes in the reaction species.

one would need a beaker which is filled with a known amount of the liquid in which thermometer is placed to measure the temperature changes; after addition of the additive to the liquid solution one can note down the temperature change and find whether the reaction is endothermic or exothermic in nature. by subtracting the initial temperature value with the final temperature one can find the temperature changes.

various combinations of liquid and additive can be used. liquid in this case can be a known quantity of water and additives can be epsom salt or without epsom salt the experiment can be conducted to notice the changes. water and ice, hydrogen peroxide and dry yeast, vinegar and baking soda,etc.

answer: i dont know the answer but this might

explanation:

l