What is the mass of 5.30 * 1022 formula units of Ba (NO3) 2?

0.09 g

12.0 g

23.0 g

3,130 g

To convert the formula units of a compound to its mass, the conversion factor is Avogadro's number, 6.022 x10^23 formula units / mol and its molar mass. In this case, we are given with 5.30x1022 formula units of Barium nitrate which has a mass of 261.33 g/mol. Hence the answer is 23.00 grams.