Chemistry help Watch

computerwizz
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Solve:

Calculate the empirical formula of the compound formed when 414g of lead form 478g of a lead oxide

Can anyone help????????
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y.u.mad.bro?
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Have you been taught to calculate empirical formulas? Calculate the number of moles of the substances first. What do you get? You are given the mass. Reply back with your working and we can go on from there.
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computerwizz
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Didn't know where to start but thanks to your help I got the same answer as the back of the book!
Thanks
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