0.143mol sample of a metal oxide, M 2 O 3 , weighs 21.4 g. (a) How many...
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Question:
0.143−mol sample of a metal oxide, M2O3, weighs 21.4 g.
(a) How many moles of O are in the sample?
mol O
(b) How many grams of M are in the sample?
g M
(c) Which element is represented by the symbol M? (Give the elemental symbol of that element.)
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