coppertone sport ultra sweatproof-spf 15 dry lotion contains 1.2 mg of otylmethoxycinnamate per fluid oz. how many micrograms of this chemical would be in 1/2 pint of the sunblock lotion?
I'll answer in mg, since 1/2 pint is more than 1 fl oz.
Since 1/2 pint = 8 fl oz, there are
8 * 1.2 = 49.6 mg of otylmethoxycinnamate.
To calculate the number of micrograms of octylmethoxycinnamate in 1/2 pint of the sunblock lotion, we'll need to convert all the units to match.
First, let's convert the volume of 1/2 pint to fluid ounces.
1 pint = 16 fluid ounces
1/2 pint = 8 fluid ounces
Now, since we know that 1 fluid ounce of the lotion contains 1.2 mg of octylmethoxycinnamate, we'll multiply the amount by 8 (number of fluid ounces in 1/2 pint) to find how many milligrams are in 1/2 pint.
1.2 mg/fluid oz * 8 fluid oz = 9.6 mg
Finally, let's convert the milligrams to micrograms.
1 mg = 1000 micrograms
9.6 mg * 1000 micrograms/mg = 9600 micrograms
Therefore, there would be 9600 micrograms of octylmethoxycinnamate in 1/2 pint of the Coppertone Sport Ultra Sweatproof-SPF 15 Dry Lotion.