Question

question 7 (2.5 points)

convert 0.0456 grams (g.) to milligrams (mg.). use the table below.

units of mass in the metric system

unit: kilogram, hectogram, dekagram, gram, decigram, centigram, milligram
abbreviation: kg, hg, dag, g, dg, cg, mg
units in grams: 1,000, 100, 10, 1, .1, .01, .001

• 0.0456 mg.
• 45.6 mg.
• 456 mg.
• 4560 mg.

Explanation:

Identify the conversion factor from the table

$$ 1\text{ mg} = 0.001\text{ g} \implies 1\text{ g} = 1000\text{ mg} $$

Convert grams to milligrams

$$ 0.0456\text{ g} \times 1000\text{ mg/g} = 45.6\text{ mg} $$

Match with the given options

$$ 45.6\text{ mg} $$

Answer:

• 0.0456 mg.
• 45.6 mg. (Correct answer)
• 456 mg.
• 4560 mg.