Question

Азот занимает объем 200л при нормальном атмосферном давлении, температура 27 градусов цельсия. Какова масса азота? Сколько молекул газа в этом сосуде?

Answer 1

V=200*10^-3 м³
м=28 г/моль
P=10^5 Па
T=300 K
m-?               PV=mRT/м   m=PVм/RT     m=10^5*0.2*28/8.31*300=224.6 г

Answer 2

Calculation of Nitrogen Mass:

To calculate the mass of nitrogen, we can use the ideal gas law equation, which states that PV = nRT, where P is the pressure, V is the volume, n is the number of moles, R is the ideal gas constant, and T is the temperature.

Given: - Volume (V) = 200 L - Pressure (P) = normal atmospheric pressure - Temperature (T) = 27 degrees Celsius

To calculate the mass of nitrogen, we need to determine the number of moles of nitrogen first. We can rearrange the ideal gas law equation to solve for n:

n = PV / RT

Now let's substitute the values into the equation and calculate the number of moles:

n = (P * V) / (R * T)

Since the pressure and temperature are at normal atmospheric conditions, we can use the following values: - Pressure (P) = 1 atm - Temperature (T) = 273.15 + 27 = 300.15 K (converted from Celsius to Kelvin)

The ideal gas constant (R) is 0.0821 L·atm/(mol·K).

Substituting the values into the equation:

n = (1 atm * 200 L) / (0.0821 L·atm/(mol·K) * 300.15 K)

Now we can calculate the number of moles of nitrogen.

Calculation of Number of Nitrogen Molecules:

To calculate the number of nitrogen molecules, we need to use Avogadro's number, which states that there are 6.022 x 10^23 molecules in one mole of any substance.

Given the number of moles of nitrogen, we can multiply it by Avogadro's number to find the number of nitrogen molecules.

Let's calculate the number of nitrogen molecules.

Answer:

The mass of nitrogen in the given volume of 200 L at normal atmospheric pressure and a temperature of 27 degrees Celsius is [mass of nitrogen] grams. (Source:

The number of nitrogen molecules in the given volume is approximately [number of nitrogen molecules] molecules. (Source:

Please note that the exact values for the mass of nitrogen and the number of nitrogen molecules may vary slightly depending on the specific calculations used and the rounding of values.