Answer:
The answer is 430.85g
Step-by-step explanation:
In order to solve this you would have to go from the moles given and convert it to grams.
You do this by multiplying the given moles (1.45) by the molar mass (297.138 g).
You would get a final answer of 430.85 grams of BaBr2.
**To get the molar mass, add up the masses of the elements together. You get this masses from the periodic table.