1 mol KMnO₄ contains 4 mol O, which has a molar mass of about 15.999 g/mol. Then the mass of O in the sample is
(4 mol) (15.999 g/mol) ≈ 63.996 g
The answer is most likely C, can a robot dominated government run a human society. The assumption here is that robots already have dominated human kind. Because of their machine intelligence, they don’t feel like humans do and therefore persecute those who are against the government.
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