Question

Помогите с заданием: р (ртути) = 13600 кг/м^3 n (Количество вещества) = 100 моль N (Hg) - ?

Answer 1

N=n*Na=100*6*10^23=6*10^25 шт
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Answer 2

Calculating the Number of Mercury Atoms

To calculate the number of mercury (Hg) atoms (N) in this scenario, we can use the formula:

N = n * N_A

Where: - N = number of atoms - n = number of moles - N_A = Avogadro's number (6.022 x 10²³ mol^-1)

Given: - ρ (density of mercury) = 13600 kg/m³ - n (amount of substance) = 100 moles

Calculation

First, we need to convert the density from kg/m³ to g/cm³ to match the units of moles.

1 kg = 1000 g 1 m³ = 1000000 cm³

So, the density of mercury in g/cm³ is:

ρ = 13600 kg/m³ = 13600 * 1000 g / 1000000 cm³ = 13.6 g/cm³

Now, we can calculate the number of mercury atoms:

N = n * N_A

N = 100 moles * 6.022 x 10²³ mol^-1

Result

N (Hg) = 6.022 x 10²⁵ atoms

So, the number of mercury atoms (N) in this scenario is approximately 6.022 x 10²⁵ atoms.