number of moles in 22.0g of phenol

Answer 1

To find the number of moles in 22.0g of phenol, we need to divide the mass of phenol by its molar mass.

The molar mass of phenol (C6H5OH) can be calculated by adding up the atomic masses of each element in its chemical formula:

Molar mass of C = 12.01 g/mol
Molar mass of H = 1.01 g/mol
Molar mass of O = 16.00 g/mol

Molar mass of C6H5OH = (6 x 12.01) + (5 x 1.01) + 16.00
= 94.11 g/mol

Now, we can calculate the number of moles of phenol:

Number of moles = mass ÷ molar mass
= 22.0g ÷ 94.11 g/mol
= 0.234 moles

Therefore, there are 0.234 moles of phenol in 22.0g of phenol.