Based on the data given, we can make a simple proportion to calculate that 91.57 grams of manganese would be produced by the decomposition of 144.9 grams of the powder.
The initial composition of the powder tells us that in 86.94 g of it there are 54.94 grams of manganese. We can make a simple proportion to calculate how many grams of manganese are produced by decomposing 144.9 grams of the powder:
86.94 grams of powder : 54.94 grams of Mn = 144.9 grams of powder : X
X = 54.94 grams of Mn * 144.9 grams of powder / 86.94 grams of powder
X = 91.57 grams of Mn
You can learn more about decomposition reactions here:
brainly.com/question/8009068
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