Question

Сколько молекул содержится в 1 литре воздуха

Answer 1

22.4.......6.02*1023
1...........х


х=

Answer 2

Number of Molecules in 1 Liter of Air

To calculate the number of molecules in 1 liter of air, we can use the ideal gas law, which states that 1 mole of any gas at standard temperature and pressure (STP) occupies 22.4 liters. We can then use the molar composition of air to determine the number of moles of each gas in 1 liter of air and convert that to the number of molecules.

The molar composition of dry air at sea level is approximately 78.084% nitrogen (N2), 20.946% oxygen (O2), 0.934% argon (Ar), and trace amounts of other gases such as carbon dioxide (CO2), neon (Ne), krypton (Kr), methane (CH4), helium (He), hydrogen (H2), and xenon (Xe).

Using this information, we can calculate the number of molecules in 1 liter of air.

First, we need to calculate the number of moles of each gas in 1 liter of air. Then, we can convert the moles to molecules using Avogadro's number, which is approximately 6.022 x 10^23 molecules per mole.

Calculation

1. Nitrogen (N2): - Percentage in air: 78.084% - Molar mass of N2: 28.02 g/mol - Moles of N2 in 1 liter of air: (78.084/100) * (1/22.4) * (1/28.02)

2. Oxygen (O2): - Percentage in air: 20.946% - Molar mass of O2: 32.00 g/mol - Moles of O2 in 1 liter of air: (20.946/100) * (1/22.4) * (1/32.00)

3. Argon (Ar): - Percentage in air: 0.934% - Molar mass of Ar: 39.95 g/mol - Moles of Ar in 1 liter of air: (0.934/100) * (1/22.4) * (1/39.95)

4. Other Trace Gases: - The moles of trace gases can also be calculated using their respective percentages and molar masses.

After calculating the moles of each gas, we can convert these moles to molecules using Avogadro's number.

Result

The total number of molecules in 1 liter of air can be calculated by summing the number of molecules of each gas.

I will now calculate the number of molecules based on the provided information.