Question

Вычислить молярную массу уксусной кислоты

Answer 1

Формула уксусной к-ты CH3COOH, 
формула состоит из 2C, 4H и 2O, складываем молярные массы всех 3 элементов, так мы найдём молярную массу, т.е. у нас в этом веществе 2C, следовательно умножаем 2*12( где 12 молярная масса С), после 4*1(1-молярная масса Н), после 2*16(16- молярная масса О), после просто складываем все эти цифры, 
24+4+32=60 г/моль

Answer 2

Calculation of Molar Mass of Acetic Acid

To calculate the molar mass of acetic acid (CH3COOH), we need to determine the atomic masses of each element in the compound and sum them up.

The molecular formula of acetic acid is CH3COOH, which consists of carbon (C), hydrogen (H), and oxygen (O) atoms.

The atomic masses of the elements are as follows: - Carbon (C): 12.01 g/mol - Hydrogen (H): 1.008 g/mol - Oxygen (O): 16.00 g/mol

To calculate the molar mass of acetic acid, we multiply the number of atoms of each element by their respective atomic masses and sum them up.

The molar mass of acetic acid can be calculated as follows:

Molar mass of acetic acid (CH3COOH) = (number of carbon atoms * atomic mass of carbon) + (number of hydrogen atoms * atomic mass of hydrogen) + (number of oxygen atoms * atomic mass of oxygen)

Let's calculate the molar mass of acetic acid step by step:

1. Carbon (C): - Number of carbon atoms in acetic acid (CH3COOH) = 1 - Atomic mass of carbon = 12.01 g/mol - Contribution to molar mass = 1 * 12.01 g/mol = 12.01 g/mol

2. Hydrogen (H): - Number of hydrogen atoms in acetic acid (CH3COOH) = 4 - Atomic mass of hydrogen = 1.008 g/mol - Contribution to molar mass = 4 * 1.008 g/mol = 4.032 g/mol

3. Oxygen (O): - Number of oxygen atoms in acetic acid (CH3COOH) = 2 - Atomic mass of oxygen = 16.00 g/mol - Contribution to molar mass = 2 * 16.00 g/mol = 32.00 g/mol

Now, let's sum up the contributions from each element:

Molar mass of acetic acid (CH3COOH) = 12.01 g/mol + 4.032 g/mol + 32.00 g/mol = 48.042 g/mol

Therefore, the molar mass of acetic acid (CH3COOH) is approximately 48.042 g/mol.

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