(4) Mixed Types of Percentage problems
3. Percent, Ratio, mg/mL, PPM, PPB 3.1) Percent 3.1.1) Percent - General
3.1.1.1) Percent from weight and volume Easy 1
Total tried: Correct: Wrong:
Calculate the volume (in mL) of a mint-flavored mouth wash you can compound where the strength will be 2.34% w/v and the dissolved quantity of the active ingredient will be 10530 mg.
Click on the button below to see the answer and explanations
Notice: Undefined variable: input_value1 in /home/jshzub/web/rxcal.org/public_html/practice/practice/includes/body.php on line 220
lb equals 450 mL kg
-
Percentage (w/v) means number of grams of drug present per 100 mL of the solution. Here, the strength is 2.34 %, which means, there is 2.34 g of drug dissolved per 100 mL of a mint-flavored mouth wash. We need to determine the volume (in mL) of a mint-flavored mouth wash which will contain 10530 mg (equals to `10530 mg × (1g)/(1000mg) = 10.53 g`) of the drug.
`∴ (100 \quad mL)/(2.34 \quad g) = x/(10.53 \quad g) ⇒ x = 450 \quad mL`
∴ The volume will be 450 mL (Ans).