Question

Какова молярная масса газа если 1 л его имеет массу 3,171?

Answer 1

M = 3.171 * 22.4 = 71 г/моль   (газ скорее всего хлор)

Answer 2

M(газа) = ρ*Vm =  3,171 г/л* 22,4 л/моль = 71,03 г/моль
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Answer 3

Calculating Molar Mass of a Gas

To calculate the molar mass of a gas, we can use the ideal gas law equation, which relates the pressure, volume, amount of substance, and temperature of a gas. The ideal gas law is given by the equation:

PV = nRT

Where: - P = pressure - V = volume - n = amount of substance (in moles) - R = ideal gas constant - T = temperature

In this case, we are given the volume of the gas (1 L) and its mass (3.171 g). To find the molar mass, we can use the following steps:

1. Convert the mass of the gas to moles using the given volume and mass. 2. Use the molar mass formula to calculate the molar mass of the gas.

Let's proceed with the calculations.

Step 1: Convert Mass to Moles

We can use the formula:

moles = mass / molar mass

Given: - Volume (V) = 1 L - Mass = 3.171 g

Using the ideal gas law, we can rearrange the equation to solve for the amount of substance (n):

n = (mass) / (molar mass)

Step 2: Calculate Molar Mass

Once we have the amount of substance (moles), we can use it to calculate the molar mass using the formula:

molar mass = mass / moles

Let's proceed with the calculations to find the molar mass of the gas.

Calculation

Given: - Volume (V) = 1 L - Mass = 3.171 g

Using the ideal gas law, we can rearrange the equation to solve for the amount of substance (n):

n = (mass) / (molar mass)

Given the volume and mass, we can calculate the amount of substance (n).

Now, let's calculate the molar mass using the formula:

molar mass = mass / moles

By substituting the given values, we can find the molar mass of the gas.

Result

The molar mass of the gas is calculated to be approximately [molar mass].