NAPLEX (North American Pharmacist Licensure Examination) Practice Exam

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What is the weight of 1 oz in grams?

15.2 grams
22.5 grams
28.4 grams
45 grams

The correct answer is: 28.4 grams

1 oz is equal to 28.4 grams. This is the standard conversion from ounces to grams. Option A, 15.2 grams, is too small of a conversion and would not be 1 oz. Option B, 22.5 grams, is closer to 1 oz but still not equal to it. Option D, 45 grams, is too large of a conversion and would not be 1 oz. Therefore, the only option that accurately converts 1 oz to grams is C, 28.4 grams.