Question

Розрахуйте масову частку Хлор VII оксиду у хлорній кислоті формула якого HClO4​

Answer 1

Ответ:

W=n*Ar/Mr

W(CI)=1*35:100=35:100=0,35

Mr(HCIO⁴)=1*1+1*35+4*16=1+35+64=100г/моль

Answer 2

Calculating the Molar Mass of Perchloric Acid (HClO4)

To calculate the molar mass of perchloric acid (HClO4), we need to consider the molar masses of the individual elements in the compound and then sum them up.

The molar mass of hydrogen (H) is approximately 1.008 g/mol, the molar mass of chlorine (Cl) is approximately 35.453 g/mol, and the molar mass of oxygen (O) is approximately 16.00 g/mol.

Now, let's calculate the molar mass of perchloric acid:

Molar mass of HClO4: - Hydrogen (H): 1.008 g/mol - Chlorine (Cl): 35.453 g/mol - Oxygen (O): 16.00 g/mol (there are 4 oxygen atoms in perchloric acid)

Calculation: - Molar mass of HClO4 = (1 * 1.008) + (1 * 35.453) + (4 * 16.00) g/mol - Molar mass of HClO4 = 1.008 + 35.453 + 64.00 g/mol - Molar mass of HClO4 = 100.461 g/mol

Therefore, the molar mass of perchloric acid (HClO4) is approximately 100.461 g/mol.