Question

В стратосфере на высоте 20-30км. находится озоновый слой (О3), подсчитано что в среднем на каждого жителя N-го города в воздушном пространстве приходится 150 моль озонового слоя (О3). Сколько молекул озона и какова его масса приходится в среднем на одного жителя N-го города?

Answer 1

N(O3)= 150•6•10^23 молекул
m(O3) = 150• 48 = 7200 г т.е. 7кг200г

Answer 2

Calculation of the Number of Ozone Molecules and its Mass in the Stratosphere

In the stratosphere, at an altitude of 20-30 km, there is an ozone layer (O3). It has been estimated that on average, each resident of the N-th city is exposed to 150 moles of the ozone layer in the atmosphere. We can calculate the number of ozone molecules and its mass per resident in the N-th city.

To calculate the number of ozone molecules, we can use Avogadro's number, which is approximately 6.022 x 10^23 molecules per mole. Multiplying the number of moles by Avogadro's number will give us the total number of ozone molecules.

Let's perform the calculation:

Number of moles of ozone = 150 moles

Number of ozone molecules = Number of moles of ozone x Avogadro's number

Number of ozone molecules = 150 moles x (6.022 x 10^23 molecules per mole)

Now, to calculate the mass of ozone, we need to know the molar mass of ozone. The molar mass of ozone (O3) is approximately 48 grams per mole.

Mass of ozone = Number of moles of ozone x Molar mass of ozone

Mass of ozone = 150 moles x 48 grams per mole

Answer:

On average, in the N-th city, each resident is exposed to approximately 9.033 x 10^25 ozone molecules in the stratosphere at an altitude of 20-30 km. The mass of ozone per resident is approximately 7.2 kilograms.

Please note that these calculations are based on the given information and assumptions.