Question

Вычислить относительную молекулярную массу соединения CH3CH2COONa (Ответить с точностью до целых). * ​

Answer 1

Ответ:

96

Объяснение:

Mr(CH₃-CH₂-COONa) =12·3+12·2+12+16+16+23= 96

Answer 2

Calculation of the Relative Molecular Mass of CH3CH2COONa

To calculate the relative molecular mass of a compound, we need to determine the sum of the atomic masses of all the atoms in the compound.

The compound CH3CH2COONa consists of the following atoms: - Carbon (C) - Hydrogen (H) - Oxygen (O) - Sodium (Na)

To calculate the relative molecular mass, we need to know the atomic masses of these elements. Here are the atomic masses of the elements involved:

- Carbon (C): 12.01 g/mol - Hydrogen (H): 1.01 g/mol - Oxygen (O): 16.00 g/mol - Sodium (Na): 22.99 g/mol

Now, let's calculate the relative molecular mass of CH3CH2COONa:

- The compound contains 2 carbon atoms, so the total mass contribution from carbon is 2 * 12.01 g/mol = 24.02 g/mol. - The compound contains 6 hydrogen atoms, so the total mass contribution from hydrogen is 6 * 1.01 g/mol = 6.06 g/mol. - The compound contains 2 oxygen atoms, so the total mass contribution from oxygen is 2 * 16.00 g/mol = 32.00 g/mol. - The compound contains 1 sodium atom, so the total mass contribution from sodium is 1 * 22.99 g/mol = 22.99 g/mol.

Adding up all these contributions, we get: 24.02 g/mol + 6.06 g/mol + 32.00 g/mol + 22.99 g/mol = 85.07 g/mol.

Therefore, the relative molecular mass of CH3CH2COONa is 85 g/mol.