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Kelsie Sawayn

Feb 20, 2025

A 2.000 g sample of an unknown metal, M, was completely burned in excess?

in excess O2 to yield 0.02224 mol of the metal oxide, M2O3. What is the metal?
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M
Madie Hilpert

Feb 20, 2025

Start with balanced equation 4M + 3O2 = 2M2O3So for every 2 moles of M2O3 you need to start with 4 moles of M. So if you ended up with 0.02224 moles M2O3 you stated out with 0.04448 moles MAs moles = mass / atomic mass AM = mass / moles= 2.000/0.04448=44.96.An atomic mass of 44.96 corresponds to Scandium... Show More
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