Question

Cколько молекул воды содержится в сосуде объемом 5 л?

Answer 1

N=  Na*Vρ\ M
Na-число Авагадро
ρ-плотность воды
М- молярная масса воды
5л= 0,005 м^3
N= 6*10^23* 0,005*1000 \  0.018=1,6*10^26

Answer 2

Calculating the Number of Water Molecules in a 5-Liter Container

To calculate the number of water molecules in a 5-liter container, we can use the concept of molar volume and Avogadro's number.

Avogadro's number is the number of atoms, ions, or molecules in one mole of a substance, which is approximately 6.022 x 10^23.

Molar volume is the volume occupied by one mole of any gas at standard temperature and pressure, which is approximately 22.4 liters at standard conditions.

Using these concepts, we can calculate the number of water molecules in a 5-liter container.

Calculation

The calculation involves converting the volume of the container (5 liters) to the number of water molecules using the molar volume and Avogadro's number.

The number of moles of water can be calculated using the formula: \[ \text{moles} = \frac{\text{volume (in liters)}}{\text{molar volume (in liters)}} \]

Then, the number of molecules can be calculated by multiplying the number of moles by Avogadro's number: \[ \text{number of molecules} = \text{moles} \times \text{Avogadro's number} \]

Result

Using the above calculation, the number of water molecules in a 5-liter container can be determined.

Please note that the search results provided do not contain relevant information for directly answering this question. Therefore, I will proceed with the calculation based on the known scientific principles.

Let's proceed with the calculation: \[ \text{moles} = \frac{5}{22.4} \] \[ \text{moles} \approx 0.2232 \]

\[ \text{number of molecules} \approx 0.2232 \times 6.022 \times 10^{23} \]

After performing the calculation, the approximate number of water molecules in a 5-liter container is around 1.345 x 10^23.

This calculation is based on the known molar volume and Avogadro's number, which are fundamental concepts in chemistry.