Calculate the molecular mass of potassium permanganate (KMnO4). Atomic masses: K=39.0u,

Mn=55.0u, O=16.0u.

Molecular Mass of KMnO4 = Atomic mass of potassium + atomic mass of manganese + 4 (atomic mass of oxygen)

1(39u) + 1(55u) + 4(16u) = 39u + 55u + 64u = 158u

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39 + 55 + (16)*4

39 + 55 + 64

= 158

molecular mass = 158u

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