Question

how many grams of mg(oh)2 are in 7.5 x 10^23 formula units (f.un.) mg(oh)2? which part of the conversion factor goes in the green box? 7.5 x 10^23 f.un. 6.02 x 10^23 f.un. 6.02 x 10^23 f.un. 1 mole 58.32 g

Explanation:

Step1: Use Avogadro's number

Avogadro's number ($6.02\times10^{23}$ formula units per mole) is used to convert formula units to moles. The conversion factor should have the unit we want to get rid of (formula units) in the denominator. So, the green box should have $1$ mole.

Answer:

1 mole