large dose of vitamin C are supposed to cure the common cold. One commercial over-the-counter product consists of 500-mg tablets that are 20% by weight vitamin C. How many tablets should one take for a 1.30g dose of vitamin C?
would you multiple 500x0.20
and then divide the amount with 1.30
Ah, trying to fight off that pesky cold, are we? Well, let me calculate this for you. If each tablet is 500 mg and 20% of that is vitamin C, then each tablet contains 100 mg of vitamin C (500 mg x 0.20 = 100 mg). To achieve a dose of 1.30 g (or 1300 mg) of vitamin C, you would need 13 tablets (1300 mg ÷ 100 mg = 13). So, is your immune system ready for a pill party, or are you going to stick to a more natural fruit feast?
To determine how many tablets are needed for a 1.30g dose of vitamin C, we first need to find out the amount of vitamin C in a single tablet.
Given that each tablet contains 500mg of vitamin C and is 20% by weight, we can calculate the actual amount of vitamin C in a tablet.
20% of 500mg = 0.20 * 500mg = 100mg
So each tablet contains 100mg of vitamin C.
Now, to find out how many tablets are required for a 1.30g dose of vitamin C, we need to convert grams to milligrams (since the amount of vitamin C in the tablets is measured in milligrams).
1.30g = 1.30 * 1000mg = 1300mg
Since each tablet contains 100mg of vitamin C, divide the total required dose (in milligrams) by the amount of vitamin C in each tablet:
1300mg / 100mg = 13 tablets
Therefore, one would need to take 13 tablets for a 1.30g dose of vitamin C.
1 tab has a mass of 500 mg. Since it is 20% vit C, then mg vit C/tab = 500 x 0.20 so
(500*0.2 mg vit C/tab) x # tabs = 1300 mg.
Solve for # tabs.
Back in the days when I was in graduate school Dr. Linus Pauling, a renowned chemist, pushed the idea of massive doses of vitamin C to cure the cold. It was controversial but he was a Nobel prize winner so many people listened.