Question

Здравствуйте! Помогите, пожалуйста! Очень нужно!1. Определите массу газа, если его относительная плотность по воздуху равна 2, 207.2. Определите относительную плотность хлороводорода по аммиаку.3. Относительная плотность газа по воздуху равна 2, 448. Определите массу 30 литров этого газа при нормальных условиях.

Answer 1

1.наверно молярную массу
М(х)=2,207*29=64,003 г/моль
2.относительная плотность равна 36,5/17=2,1470
3.М(х)=2,448*29г/моль=70,992г/моль
m=ню(кол-во вещества)*М
ню=V/Vm
ню=30л/22,4=1,3моль
m(x)=1,3*70,992=92,2896г

Answer 2

Calculation of Gas Mass

To determine the mass of a gas, we need to know its relative density or specific gravity. The relative density of a gas is the ratio of its density to the density of air at the same temperature and pressure.

1. Mass of Gas with Relative Density of 2.207: To find the mass of a gas with a relative density of 2.207, we need to know the density of air at the given conditions. The density of air at standard temperature and pressure (STP) is approximately 1.225 kg/m³ [[1]].

Using the formula: Mass = Volume x Density, we can calculate the mass of the gas.

Let's assume the volume of the gas is 1 cubic meter (m³): - Mass = 1 m³ x 1.225 kg/m³ = 1.225 kg

Therefore, the mass of the gas is approximately 1.225 kg.

2. Relative Density of Hydrogen Chloride (HCl) with respect to Ammonia (NH₃): To determine the relative density of hydrogen chloride (HCl) with respect to ammonia (NH₃), we need to compare their densities at the same conditions.

According to the ideal gas law, the density of a gas is directly proportional to its molar mass and inversely proportional to its temperature and pressure. Since we don't have specific temperature and pressure values, we cannot calculate the exact relative density.

However, we can compare the molar masses of HCl and NH₃ to get an idea of their relative densities. The molar mass of HCl is approximately 36.46 g/mol, while the molar mass of NH₃ is approximately 17.03 g/mol [[2]].

Comparing the molar masses, we can conclude that the relative density of HCl with respect to NH₃ is greater than 2. This means that HCl is denser than NH₃.

3. Mass of Gas with Relative Density of 2.448: To determine the mass of a gas with a relative density of 2.448, we need to know the density of air at the given conditions. The density of air at standard temperature and pressure (STP) is approximately 1.225 kg/m³ [[1]].

Using the formula: Mass = Volume x Density, we can calculate the mass of the gas.

Let's assume the volume of the gas is 30 liters (0.03 m³): - Mass = 0.03 m³ x 1.225 kg/m³ = 0.03675 kg

Therefore, the mass of 30 liters of the gas is approximately 0.03675 kg.

Please note that these calculations are based on the assumptions and approximations made. The actual values may vary depending on the specific conditions and properties of the gases involved.

I hope this helps! Let me know if you have any further questions.