# Question #b87e2

##### 2 Answers

A fluid ounce (fl oz.) is a unit of volume used for measuring liquids and is equivalent to **29.57 mL** (1 US fluid ounce).

An ounce, onthe other hand, is a unit of mass equivalent to **28.35 grams**.

SInce you know that water has a density of

The volume would be

Therefore,

You would need 32 Imperial fl. oz. or 31 US fl. oz. of water.

A fluid ounce is a unit of *volume*, not a unit of mass. To convert to mass, you must know the density of the liquid.

To complicate matters, there is an *Imperial* fluid ounce and an *American* fluid ounce.

**In Imperial Units**

1 Imperial fl. oz. = the volume of 1 avoirdupois oz. of water

So 1 fl. oz. = 1 oz. and

**In American Units**

1 US fl. oz. = 1.043 oz.

So