tkozak90 tkozak90

27-12-2021
Chemistry

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What is the mass of a 2.5 mole sample of MgO2

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Аноним Аноним

28-12-2021

mass = no. of moles x molecular weight
m = n x Mr
m = 2.5 mol x (24 + [16 x 2])
m = 140g

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