Find the mass percent of CuSO4 in a solution whose density is 1.30 g/mL and whose molarity is 1.22M.

Butadiene undergoes a reaction at a certain temperature in the gas phase as follows: 2c4h6(g) --> c8h12(g) the following data were collected for this reaction: time (min) [c4h6] (m) 0 0.36 15 0.30 30 0.25 48 0.19 75 0. determine the order of the reaction and the rate constant. 1st order and k = 4.3x10 -4 s-1 1st order and k = 2.3x10-4 s-1 2nd order and k = 4.3x10-4 s-1 2nd order and k = 2.3x10-4 s-1 zero and k = 4.3x10-4 s-1

Apiece of metal with a length of 1.42 cm was measured using four different instruments. which of the following measurements is the most accurate?

12. calculate the hydroxide ion concentration of a solution with ph = 3.25. show all calculations leading to an answer