Question

Вычислите где больше массовая доля (в%) серы: в H2O или SO2? РЕБЯТ СРОЧНО, К.Р. ИДЕТ!!!!

Answer 1

В н2о нет серы вообще

Answer 2

Calculation of Mass Fraction of Sulfur in H2O and SO2

To determine which compound, H2O or SO2, has a higher mass fraction of sulfur, we need to compare the amount of sulfur in each compound relative to their total mass.

The molecular formula of water (H2O) indicates that it consists of two hydrogen atoms and one oxygen atom. There is no sulfur present in water, so the mass fraction of sulfur in H2O is 0%.

On the other hand, the molecular formula of sulfur dioxide (SO2) indicates that it consists of one sulfur atom and two oxygen atoms. To calculate the mass fraction of sulfur in SO2, we need to consider the atomic masses of sulfur and oxygen.

The atomic mass of sulfur (S) is approximately 32.06 atomic mass units (amu), and the atomic mass of oxygen (O) is approximately 16.00 amu.

To calculate the mass fraction of sulfur in SO2, we can use the following formula:

Mass Fraction of Sulfur in SO2 = (Mass of Sulfur / Total Mass of SO2) x 100%

The total mass of SO2 can be calculated by adding the atomic masses of sulfur and two oxygen atoms:

Total Mass of SO2 = (Atomic Mass of Sulfur) + 2 x (Atomic Mass of Oxygen)

Let's calculate the mass fraction of sulfur in SO2 using the given atomic masses:

Total Mass of SO2 = (32.06 amu) + 2 x (16.00 amu) = 64.06 amu

Mass Fraction of Sulfur in SO2 = (32.06 amu / 64.06 amu) x 100% ≈ 50%

Therefore, the mass fraction of sulfur in SO2 is approximately 50%, which is higher than the 0% mass fraction of sulfur in H2O.

In conclusion, the mass fraction of sulfur is higher in SO2 compared to H2O.