Calculate the mass of 0.456 moles of chlorous acid (HClO2).

Sure, to calculate the mass of 0.456 moles of chlorous acid (HClO2), you need to know the molar mass of HClO2.

Step 1: Calculate the molar mass of HClO2 The molar mass of a substance is calculated by adding up the atomic masses of all the atoms in its chemical formula.

• The atomic mass of Hydrogen (H) is approximately 1 g/mol.
• The atomic mass of Chlorine (Cl) is approximately 35.5 g/mol.
• The atomic mass of Oxygen (O) is approximately 16 g/mol.

So, the molar mass of HClO2 is (11) + (135.5) + (2*16) = 1 + 35.5 + 32 = 68.5 g/mol.

Step 2: Multiply the number of moles by the molar mass Now that we know the molar mass of HClO2, we can calculate the mass of 0.456 moles.

Mass = number of moles * molar mass Mass = 0.456 moles * 68.5 g/mol = 31.24 g

So, the mass of 0.456 moles of chlorous acid (HClO2) is approximately 31.24 grams.