How many milliliters are in one ounce?

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Prepare for the Credentia California CNA Test. Utilize flashcards and multiple-choice questions, complete with hints and explanations. Gear up for your CNA certification!

Multiple Choice

How many milliliters are in one ounce?

Explanation:
Converting fluid ounces to milliliters is about volume measurement in the US customary system. One US fluid ounce is about 29.57 milliliters, so it’s common to use 30 mL as a practical approximation. That means a single ounce of liquid is roughly 30 milliliters. The other numbers don’t fit because 15 mL is about half an ounce, 45 mL is about 1.5 ounces, and 60 mL is about 2 ounces. So 30 milliliters is the right amount.

Converting fluid ounces to milliliters is about volume measurement in the US customary system. One US fluid ounce is about 29.57 milliliters, so it’s common to use 30 mL as a practical approximation. That means a single ounce of liquid is roughly 30 milliliters. The other numbers don’t fit because 15 mL is about half an ounce, 45 mL is about 1.5 ounces, and 60 mL is about 2 ounces. So 30 milliliters is the right amount.

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