Air is composed of about 79 mol% N2 and 21 mol% 02. What is the frequency of binary collisions of all kinds at 300 Kand 1 atm total pressure? The radius of N2 is 1.6 A and the radius of 02 is 1.5 A. Think of an approximate and simpler way to calculate the frequency of binary collisions of all kinds. How does your approximate answer compare with the one you calculated initially?

How many electrons does silver have to give up in order to achieve a sido noble gas electron configuration

In which reaction is precipitation occurring?

The content of manganese (mn) in steel was determined spectrophotometrically and with the use of the standard addition method. an unknown sample of mn from a digested steel sample gave an absorbance of 0.185 when analyzed spectrophotometrically. when 5.00 ml of solution containing 95.5 ppm mn was added to 50.0 ml of the unknown steel solution (digested sample), the absorbance was 0.248. calculate the concentration, in parts-per-million (ppm), of mn in the digested steel sample solution.