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1 moles selenium = 78.96 g1 mmole = 78.96 mg

1 micromole = 78.96 micrograms

0.4 micomoles x 78.96 micrograms/micromole = 31.58 micrograms = 30 micrograms (to 1 sig.fig.)

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Q: How do you convert 0.4 micromoles of selenium to micrograms?
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