Question

A sample of nitrogen in a glass bulb has a mass of 245 mg. What is this mass in kilograms? Give your answer to the correct number of significant figures.

Answer 1

1 mg = 10⁻⁶ kg

245 mg = 245·10⁻⁶ kg = 2.45·10⁻⁴ kg

Answer 2

the answer is 0.000245kg

Step-by-step explanation:

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