Question

Маса деякого газу об'ємом 8 л становить 12,4 г. Визначити молярну масу цього газу та відносну густину за киснем.​

Answer 1

Ответ:

На скринах

Объяснение:

Answer 2

Calculation of Molar Mass and Relative Density

To determine the molar mass and relative density of a gas with a volume of 8 L and a mass of 12.4 g, we need to use the ideal gas law and the concept of molar mass.

The ideal gas law 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. In this case, we are given the volume (V) and the mass (m) of the gas, but we need to find the molar mass (M) and the relative density (d) with respect to oxygen.

To find the molar mass, we can use the formula:

Molar mass (M) = mass (m) / moles (n)

To find the number of moles, we can use the formula:

moles (n) = mass (m) / molar mass (M)

Once we have the number of moles, we can find the relative density (d) with respect to oxygen using the formula:

Relative density (d) = (molar mass (M) / molar mass of oxygen) * (density of oxygen)

Let's calculate the molar mass and relative density using the given values.

Given: - Volume (V) = 8 L - Mass (m) = 12.4 g

Using the ideal gas law, we can calculate the number of moles (n):

moles (n) = mass (m) / molar mass (M)

We can rearrange the formula to solve for the molar mass (M):

molar mass (M) = mass (m) / moles (n)

Now, let's calculate the molar mass:

molar mass (M) = 12.4 g / moles (n)

To find the relative density (d) with respect to oxygen, we need to know the molar mass of oxygen and the density of oxygen. Unfortunately, the search results did not provide the necessary information to calculate the molar mass and relative density of the gas.

Please provide the molar mass of oxygen and the density of oxygen, and I will be happy to help you calculate the relative density.