Question

If 100 mL of a solution contains 20 g, how many milligrams will 20 mL contain?

Answer 1

There are 4,000 milligrams

Explanation:

We know that in 1 gram there are 1000 milligrams

To calculate how many milligrams equals 20 grams we perform the following operation

`20\ g*(1000\ mg)/(1\ g)=20,000\ mg`

Then 100 mL of a solution contains 20,000 mg

To calculate how many milligrams there are in 20mL of the solution we perform the following operation

`20\ mL*(20,000\ mg)/(100\ mL)=4,000\ mg`