NAPLEX (North American Pharmacist Licensure Examination) Practice Exam

How many mL is 1 quart approximately equal to?

1. 646 mL

2. 746 mL

3. 846 mL

4. 946 mL

The correct answer is: 946 mL

1 quart is equal to approximately 946 mL. This is because 1 quart is equal to 32 fluid ounces, and 1 fluid ounce is equal to approximately 29.5735 mL. Therefore, 32 x 29.5735 = 946.856 mL, which is rounded to 946 mL. Option A is incorrect because 646 mL is closer to half of a quart (473 mL) and would not be considered approximately equal. Option B is incorrect because 746 mL is also closer to half of a quart and is still not considered approximately equal. Option C is incorrect because 846 mL is closer to three-quarters of a quart (710 mL) and would not be considered approximately equal.