Question

Написати формулу та виведення всіх величин кількости речовини через масу речовини​

Answer 1

Ответ:

m-маса

V-об'єм

n-кількість речовини

N-кількість молекул

Na-постійна величина яка дорівнює 6,02*10*23

Vm-постійна величина яка дорівнює 22,4 л/моль

Answer 2

Formula and Derivation for Calculating Amount of Substance from Mass of Substance

The amount of substance, also known as the quantity of substance, is a fundamental concept in chemistry. It is measured in moles (mol) and represents the number of particles (atoms, molecules, ions, etc.) in a given sample of a substance.

The formula for calculating the amount of substance (n) from the mass of substance (m) is as follows:

n = m / M

Where: - n is the amount of substance in moles (mol) - m is the mass of the substance in grams (g) - M is the molar mass of the substance in grams per mole (g/mol)

The molar mass (M) represents the mass of one mole of a substance and is calculated by summing the atomic masses of all the atoms in the chemical formula of the substance.

To derive this formula, we start with the definition of molar mass:

Molar mass (M) = Mass of substance (m) / Amount of substance (n)

Rearranging the equation, we get:

Amount of substance (n) = Mass of substance (m) / Molar mass (M)

Therefore, the formula for calculating the amount of substance from the mass of substance is:

n = m / M

Please note that the molar mass can be determined experimentally or obtained from the periodic table by summing the atomic masses of the elements in the chemical formula of the substance.

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