mass of 0.0091mol of retinoic acid

Answer 1

To calculate the mass of 0.0091 mol of retinoic acid, we need to know the molar mass of retinoic acid.

The molecular formula of retinoic acid is C20H28O2, which has a molar mass of:

20 x atomic mass of carbon (12.01) = 240.2 g/mol

28 x atomic mass of hydrogen (1.01) = 28.28 g/mol

2 x atomic mass of oxygen (16.00) = 32.00 g/mol

Total molar mass = 300.48 g/mol

Now, we can use the given amount of retinoic acid in moles and the molar mass to calculate the mass of 0.0091 mol of retinoic acid:

Mass = (0.0091 mol) x (300.48 g/mol) = 2.74 g

Therefore, the mass of 0.0091 mol of retinoic acid is 2.74 g.