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An extra-strength aspirin contains 0.500 g of aspirin. How many grains is this? (1 grain = 64.8 mg)

2 Answers

5 votes
There are 7.72 grains in .500 g of asprin 
User Yousha Arif
by
8.4k points
4 votes

Answer:

The answer is 7.72 grains, this means between 7 and 8 grains.

Step-by-step explanation:

First you must have the mass in the same units, that is in g or mg. In this case the unit chosen is g. So they will convert the mass that contains a grain to g. For that you use the following Rule of Three:

If 1 mg represents 0.001 g, then how many grams are 64.8 mg?


(64.8 mg* 0.001 g)/(1 mg) =0.0648 g

Now, to calculate how many grains represent 0.5 g, a new Rule of Three can be used:

If 1 grain represents 0.0648 g, then how many grains are 0,5 g?


(0.5 g*1 grain)/(0.0648 g) =7.72 grains

So the answer is 7.72 grains.

User Ibrabeicker
by
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