Question

Визначте загальну кількість атомів у 3,4 г азоту N2 .​

Answer 1

Ответ:

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Объяснение:

Answer 2

General Quantity of Atoms in 3.4g of N2

To determine the general quantity of atoms in 3.4g of N2, we can use the concept of moles and Avogadro's number.

1. Molar Mass of N2: - The molar mass of N2 (nitrogen gas) is approximately 28.02 g/mol.

2. Calculating Moles of N2: - We can calculate the number of moles of N2 using the formula: \[ \text{moles} = \frac{\text{mass}}{\text{molar mass}} \] Substituting the given mass of N2 (3.4g) and the molar mass of N2, we get: \[ \text{moles} = \frac{3.4g}{28.02 \frac{g}{mol}} \approx 0.1214 \text{ moles} \]

3. Avogadro's Number and Number of Atoms: - Avogadro's number is approximately \(6.022 \times 10^{23}\) atoms/mol. - To find the number of atoms in 3.4g of N2, we can use the relationship: \[ \text{number of atoms} = \text{moles} \times \text{Avogadro's number} \] Substituting the calculated moles of N2, we get: \[ \text{number of atoms} = 0.1214 \text{ moles} \times 6.022 \times 10^{23} \frac{\text{atoms}}{\text{mol}} \approx 7.31 \times 10^{22} \text{ atoms} \]

Therefore, the general quantity of atoms in 3.4g of N2 is approximately 7.31 x 10^22 atoms.