Question

В молекуле кислоты на каждые 150 атомов гидрогена припадает 50 атомов фосфора и 200 атомов оксигена. составьте молекулярную формулу этой кислоты и укажите в ответе число атомов в одной молекуле

Answer 1

Пусть формула кислоты НхРуОz.
x : y : z = N(H) : N(P) : N(O) = 150 : 50 : 200 = 3 : 1 : 4.
Формула кислоты Н3РО4.
Число атомов в одной молекуле - 8.

Answer 2

Н3РО4, 8 атомов............................

Answer 3

Molecular Formula of the Acid

To determine the molecular formula of the acid, we need to analyze the ratio of hydrogen (H), phosphorus (P), and oxygen (O) atoms in the molecule.

According to the given information, for every 150 hydrogen atoms, there are 50 phosphorus atoms and 200 oxygen atoms.

Let's break down the information:

- Hydrogen (H): 150 atoms - Phosphorus (P): 50 atoms - Oxygen (O): 200 atoms

To find the simplest whole-number ratio, we can divide each of these numbers by their greatest common divisor (GCD).

The GCD of 150, 50, and 200 is 50. Dividing each number by 50 gives us:

- Hydrogen (H): 150 / 50 = 3 atoms - Phosphorus (P): 50 / 50 = 1 atom - Oxygen (O): 200 / 50 = 4 atoms

Therefore, the molecular formula of the acid is H3PO4.

Number of Atoms in One Molecule

The molecular formula H3PO4 indicates that one molecule of the acid contains 3 hydrogen atoms, 1 phosphorus atom, and 4 oxygen atoms.

Therefore, there are a total of 8 atoms in one molecule of the acid (3 hydrogen atoms + 1 phosphorus atom + 4 oxygen atoms).

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