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25-01-2024
Mathematics

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An analysis showed a sample to contain 0.00471 grams of lead. How many micrograms is this?
a. 0.471 µg
b. 4.71 × 10⁶ µg
c. 4.71 × 10³ µg
d. 4.71 × 10⁻⁶ µg
e. 4.71 × 10⁻² µg

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