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Biology 18 Online
OpenStudy (anonymous):

The mass of a sample of sodium bicarbonate is 2.1 kilograms (kg). There are 1,000 grams (g) in 1 kg, and 1 x 10^9 nanograms (ng) in 1 g. What is the mass of this sample in ng? A.2.1 x 10^3ng b.2.1 x 10^6ng c.2.1 x 10^9ng d.2.1 x 10^12ng

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