From the following data for the fırst order reaction: C2H6N2 (g) C2H6 (g) + N2 (g), calculate the value of the rate constant k (in s1) by plugging a point into the rate law. [C2H6N2] Rate 1.13 х 10-2 М 9.8 x 10-5 M·s-1 1.95 х 10-2 1.7 x 10-4 3.79 x 10-2 3.3 х 10-4 First Order [A]o In kt [A]t .693 k

The SI unit for energy is the joule (J), which is equal to the kineticenergy possessed by a 2.00-kg mass moving at 1.00 m/s. Convertthis velocity to mph (1 mi = 1.609 km).(a) 4.47 × 10–7 mph (b) 5.79 × 106 mph (c) 5.79 mph (d) 0.0373 mph (e) 2.24 mph

Multiply: (8.5 × 10') × (7.41 × 10") = 102) (a) %3D 8.8 × 10-8) × (8.6 x 10°) (8.6 x 10°) (b) (0) (8.62 x 10") × (9.4 x 10-") (d) (9.2 x 10-°) X (8.8 x 10-15

(Incorrect) An impure sample of hydrocarbon having a total mass of 41.0 g undergoes combustion analysis to generate 82.6 g CO₂(g) and 16.9 g H₂O(g). Assuming that the impurities do not contain carbon or hydrogen, what percentage of the initial sample is the pure hydrocarbon? Provide the numerical value of your response in decimal notation rounded to 3 significant figures. You answered: 4.58 The correct answer is: 59.5%