compound a has the molecular formula c14h25br and was obtained by reaction of sodium acetylide with 1,12-dibromododecane. on treatment of compound a with sodium amide, it was converted to compound b (c14h24). ozonolysis of compound b gave the compound with the following chemical formula: ho2c(ch2)12cooh (a diacid because it has two acid functional groups on each end). catalytic hydrogenation of compound b over lindar palladium gave compound c (c14h26) and hydrogenation of compound b over platinum gave compound d (c14h28). sodium-ammonia reaction of compound b gave compound e (c14h26). both c and e yielded o=ch(ch2)12ch=o on ozonolysis. assign structures to compounds a through e so as to be consistent with the observed transformations.

The table lists pressure and volume values for a particular gas. which is the best estimate for the value of v at p = 7.0 × 103 pascals?

Compare the equilibrium constants for the systems shown in the table. which favors products the most? which favors products the least? rank these systems in order from most to least in terms of favoring products rather than reactants. d > b > a > c c > a > b > d b > c > d > a a > d > c > b

Astudent made a graph plotting the progress of a reaction over time. the student forgot to label the y-axis of the graph. a graph is shown with two graph lines. one graph line starts at a higher position on the y axis and slopes downwards towards the right. the other graph line starts at a lower position on the y axis and slopes upwards towards the right. the two graph lines stop short of intersecting each other and continue as separate lines which gradually become straight and parallel to the x axis. a vertical line is shown at a point where the two graph lines finally became parallel to the x axis. this vertical line is labeled equilibrium. the title on the x axis is time and an arrow pointing towards the right is shown above time. the title on the y axis is left blank. what best explains the label that the student should use on the y-axis? amount, because as the amount of product decreases, the amount of reactant increases over time. reaction rate, because forward and backward reaction become equal at equilibrium. amount, because the amounts of reactants and products become constant after equilibrium is reached. reaction rate, as the rate of forward reaction increases and rate of backward reaction decreases over time.