Question

perform the conversion.

(0.045\text{ mg} = \text{______ mcg})

• (0.000045\text{ mcg})
• (0.00045\text{ mcg})
• (4.5\text{ mcg})
• (45\text{ mcg})

Explanation:

Identify the conversion factor

$$ 1\text{ mg} = 1000\text{ mcg} $$

Calculate the converted value

$$ 0.045\text{ mg} \times 1000\text{ mcg/mg} = 45\text{ mcg} $$

Answer:

• (A) 0.000045 mcg
• (B) 0.00045 mcg
• (C) 4.5 mcg
• (D) 45 mcg (Correct answer)