Hello there! :)
[tex]\huge\boxed{0.214mol}[/tex]
Atomic mass of KBr = 39.098 (K) + 79.904 (Br) = 119.002 grams.
Convert from grams to moles using dimensional analysis. Use the provided
amount of grams in the sample to begin:
[tex]25.5 g * \frac{1 mol}{119.002g} = \frac{25.5}{119.002} = 0.214 mol[/tex]
Therefore, there are approximately 0.214 moles of KBr in a 25.5 gram sample.
