What is the mass, in grams, of 0.150 moles of I2?

Question

I₂ is the accurate style for iodide in the question above.

Answer 1

molar mass I2 = 253.8 g/mol

1 mol I2 = 253.8 g

0.150 mols x 253.8 g/mol = 38.1 g (3 sig. figs.)