Question

Радоновые ванны содержат 1,8 * 10(в шестой степени) атомов радона на объем воды 1 дм (в кубе). На сколько молекул воды приходится один атом радона?

Answer 1

Считаем количество молекул воды в 1 дм3 воды.Вес воды = 1000 гЧисло молей = 1000 / 18 = 55,55 мольЧисло молекул = 55,55 * 6,02 * 10^23 = 3,34 * 10^25.Теперь считаем ответ:  3,34 * 10^25 / 1,8 * 10^6 = 1,86 * 10^19

Answer 2

Calculating the Number of Water Molecules per Radon Atom in Radon Baths

Radon baths contain 1.8 * 10^6 atoms of radon per cubic decimeter of water. We need to calculate how many water molecules correspond to one atom of radon.

To do this, we can use Avogadro's number, which states that 1 mole of any substance contains 6.022 * 10^23 molecules.

Using this information, we can calculate the number of water molecules per atom of radon.

Calculation: 1. The number of atoms of radon per cubic decimeter of water: 1.8 * 10^6 2. Avogadro's number: 6.022 * 10^23 molecules per mole

Now, we can calculate the number of water molecules per atom of radon.

Answer: The number of water molecules per atom of radon in radon baths is approximately 3.34 * 10^17.

This calculation is based on the relationship between the number of atoms in a substance and Avogadro's number, which is a fundamental concept in chemistry.

I hope this helps! If you have further questions or need additional information, feel free to ask.