Determine the mean free path of oxygen molecules in air at 25.0 ºC, given that the collision frequency for oxygen in air is 5.3 × 10^{9} collisions per second and the collision diameter of an oxygen molecule is 3.7 × 10^{-10} m. (Enter your answer using E notation.)

Neils bohr believed that electrons orbited the nucleus in different energy levels, based on strong support from

How many miles of water are produced if 5.43 mol pbo2 are consumed

Calculate: select the worksheet tab. this tab you calculate the analyte concentration.  fill in the first set of boxes ("moles h2so4" and "moles naoh") based on the coefficients in the balanced equation. (if there is no coefficient, the value is 1.)  record the appropriate volumes in the "ml naoh" and "ml h2so4" boxes.  record the concentration of the titrant in the m naoh box. click calculate. what is the concentration listed