Question

Расчитать массовую долю металла в гидроксиде меди(I)

Answer 1

Массовая доля это отношение меди к данному гидроксиду получаем :
W=64 г : 98 г =0,65 или 65%

Answer 2

Calculating the Mass Fraction of Metal in Copper(I) Hydroxide

To calculate the mass fraction of metal in copper(I) hydroxide, we can use the molar masses of copper and oxygen to determine the mass of the metal in the compound.

The molar mass of copper(I) hydroxide (CuOH) can be calculated as follows:

- The molar mass of copper (Cu) is approximately 63.55 g/mol. - The molar mass of oxygen (O) is approximately 16.00 g/mol. - The molar mass of hydrogen (H) is approximately 1.01 g/mol.

Using this information, we can calculate the molar mass of copper(I) hydroxide:

Molar mass of CuOH = (molar mass of Cu) + (molar mass of O) + (molar mass of H) = 63.55 + 16.00 + 1.01 ≈ 80.56 g/mol

Now, to find the mass fraction of copper in copper(I) hydroxide, we can use the following formula:

Mass fraction of copper = (Molar mass of Cu) / (Molar mass of CuOH) * 100%

Substituting the values, we get:

Mass fraction of copper = (63.55 / 80.56) * 100% ≈ 78.9%

Therefore, the mass fraction of copper in copper(I) hydroxide is approximately 78.9%.