Question

Оксид элемента имеет состав ЭО3,Массовая доля кислорода в этом оксиде составляет 60%.Какой элемент образует оксид? Полное решение Напишите пожалуйста!!очень прошу Задача 2. Элемент Массой 16 г,взаимодействует с молекулярным кислородом массой 6.4 г,образует оксид состава ЭО.Определите что это за элемент Полное решение плз!

Answer 1

MrЭО3=х+16*3=х+48
WO=48/X+48
60/100=48/X+48
0,6(X+48)=48
0,6X=48-28,8
X=19,2/0,6
X=32
См.по таблице это сера :SO3

Answer 2

Element forming the oxide EO3 with 60% oxygen composition

To determine the element that forms the oxide EO3 with a 60% oxygen composition, we can use the concept of mass percent composition.

The mass percent composition of an element in a compound is the mass of that element divided by the total mass of the compound, multiplied by 100%.

In this case, we are given that the mass fraction of oxygen in the oxide EO3 is 60%. This means that for every 100 grams of the oxide EO3, 60 grams are oxygen.

Let's assume the total mass of the oxide EO3 is 100 grams. Since the mass fraction of oxygen is 60%, the mass of oxygen in the oxide EO3 is 60 grams.

To find the mass of the element in the oxide EO3, we subtract the mass of oxygen from the total mass of the oxide EO3: Mass of element = Total mass of oxide EO3 - Mass of oxygen Mass of element = 100 grams - 60 grams Mass of element = 40 grams

Therefore, the element that forms the oxide EO3 with a 60% oxygen composition has a mass of 40 grams.

Unfortunately, without additional information, it is not possible to determine the specific element that forms the oxide EO3. The same oxide composition can be formed by different elements.