The gas phase decomposition of dinitrogen pentoxide at 335 K N2O5(g)2 NO2(g) + ½ O2(g)

is first order in N2O5 with a rate constant of 0.00470 s-1.

If the initial concentration of N2O5 is 0.177 M, the concentration of N2O5 will be 0.0384 M after
s have passed. (I need specific instructions on how to solve this problem with a simple scientific calculator please!!)

Does the number of ions in solution increase, decrease, or remain constant? it continuously decreases. it continuously increases. it decreases at first, then increases. it increases at first, then decreases.

Which is the most concentratic acid

A2-kg bowling ball is 1 meter off the ground on a post when it falls. just before it reaches the ground,its traveling 4.4 m/s. assuming that there is no air resistant, which statement is true a. the initial potential energy is less then the final kinetic energy b. the mechanical energy is not conserved c. the mechanical energy is conserved d. the initial potential energy is greater than the final kinetic energy