Question

Помогите очень надо прошу! сделаю лучшим!Массовая доля какого вещества - меди или кислорода - больше в сульфате меди (II) Формула CuSO4 прошу ! срочно надо!!!!

Answer 1

Прости, что долго, не могла найти шнур

Выходит что равно, можешь пересчететать сам(а)

Answer 2

СuSO4
молекулярная масса CuSO4=159.5 г/моль
W Cu=63.5/59.5=0.398*100%=39.8%
W O2=(16*4)/159.5=0.4*100%=40%

Answer 3

Mass Fraction of Copper and Oxygen in Copper(II) Sulfate (CuSO4)

The mass fraction refers to the proportion of a specific substance within a compound. In the case of copper(II) sulfate (CuSO4), we can determine the mass fraction of copper and oxygen.

To calculate the mass fraction of copper in copper(II) sulfate, we need to consider the molar masses of copper and copper(II) sulfate. The molar mass of copper (Cu) is approximately 63.55 g/mol, and the molar mass of copper(II) sulfate (CuSO4) is approximately 159.61 g/mol.

The formula for copper(II) sulfate (CuSO4) indicates that there is one copper atom in each molecule of copper(II) sulfate. Therefore, the mass fraction of copper in copper(II) sulfate can be calculated as follows:

Mass Fraction of Copper = (Molar Mass of Copper / Molar Mass of Copper(II) Sulfate) * 100%

Substituting the values, we get:

Mass Fraction of Copper = (63.55 g/mol / 159.61 g/mol) * 100%

Calculating this expression gives us the mass fraction of copper in copper(II) sulfate.

Now, let's move on to the mass fraction of oxygen in copper(II) sulfate. The formula for copper(II) sulfate (CuSO4) indicates that there are four oxygen atoms in each molecule of copper(II) sulfate. Therefore, we can calculate the mass fraction of oxygen as follows:

Mass Fraction of Oxygen = (4 * Molar Mass of Oxygen / Molar Mass of Copper(II) Sulfate) * 100%

To calculate the mass fraction of oxygen, we need to know the molar mass of oxygen. The molar mass of oxygen (O) is approximately 16.00 g/mol.

Substituting the values, we get:

Mass Fraction of Oxygen = (4 * 16.00 g/mol / 159.61 g/mol) * 100%

Calculating this expression gives us the mass fraction of oxygen in copper(II) sulfate.

Please note that the mass fractions of copper and oxygen in copper(II) sulfate can vary slightly depending on the purity of the compound.

I hope this information helps! Let me know if you have any further questions.