Question

Determine the rate of chemical reaction between oxygen (concentration of 3.6 mol/l)
and nitrogen (concentration of 8.6 mol/l), if the rate constant is 1.9 mol / l.min, and
reaction proceeds according to the scheme: O2(g) + 2N2(g) →2N2O(g).

Answer 1

180 three

The first 3-digit natural number which is exactly divisible by 5, is 100, while the last one is 995. n = ? Therefore, there are 180 three-digit natural numbers which are exactly divisible by 5.