Question

1. Сполука Силіцію з Оксигеном, забарвлена різними домішками, утворює коштовне й напівкоштовне каміння агат, аметист, яшму. Масова частка Силіцію в його сполуці з Оксигеном становить 46,7 %. Визнач формулу цієї сполуки за умови, що її відносна формульна маса дорівнює 60.​

Answer 1

Ответ:

SiO2

Объяснение:

SixOy, знайдемо кількість атомів елементів за формулою: n = W/Ar

n(Si) = 46,7%/28 ≈ 1,7

Щоб знайти n Оксигену, треба спершу знайти його молекулярну частку: W (O) = 100% - 46,7% = 53,3%

n(O) = 53,3%/16 ≈ 3,3

3,3 : 1,7 отримаємо відношення 1:2

Отже, Силіцій 1 Оксиген 2

Answer 2

Chemical Compound Formula Calculation

The compound in question is a combination of silicon and oxygen, with various impurities, forming valuable and semi-precious stones such as agate, amethyst, and jasper. The mass fraction of silicon in this compound with oxygen is 46.7%. To determine the formula of this compound, we can use the given relative formula mass of 60.

The first step is to find the molar mass of silicon and oxygen: - The molar mass of silicon (Si) is approximately 28.0855 g/mol. - The molar mass of oxygen (O) is approximately 16.00 g/mol.

Next, we can calculate the molar ratio of silicon to oxygen in the compound: - The mass fraction of silicon is 46.7%, which means the mass fraction of oxygen is 100% - 46.7% = 53.3%. - Using these percentages, we can calculate the molar ratio of silicon to oxygen.

Now, let's calculate the molar ratio of silicon to oxygen: - The molar ratio of silicon to oxygen can be calculated using their molar masses and the given mass fractions.

Finally, we can use the molar ratio to determine the empirical formula of the compound: - The empirical formula represents the simplest whole-number ratio of the elements in the compound.

Based on the given information, we can calculate the empirical formula of the compound using the molar ratio of silicon to oxygen and the molar masses of silicon and oxygen.

Let's proceed with the calculations.