Question

5. Масова частка деякого елемента в його оксиді 42,9%. Визначте формулу оксиду, якщо валентність елемента ІІ.

Answer 1

Ответ:

забей этот вопрос в , там должно быть 100%

Answer 2

Formula of Oxide with 42.9% Mass Fraction of Element with Valency II

To determine the formula of the oxide with a 42.9% mass fraction of an element with valency II, we can use the concept of finding the empirical formula.

The mass fraction of the element in the oxide is 42.9%, which means that the mass of the element is 42.9 grams in a 100-gram sample of the oxide.

Given that the valency of the element is II, we can proceed with the calculation.

The formula for the empirical formula calculation is: Empirical formula = (Mass of element / Molar mass of element) / (Mass of oxide / Molar mass of oxide)

Let's calculate the empirical formula using this information.

First, we need to determine the molar mass of the element with valency II. For this, we need to know the specific element in question. If you have a specific element in mind, please provide it for a more accurate calculation.