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sophiaa23
29.09.2019 •
Mathematics
Aunit dose of levalbuterol hcl contains 3.0 ml in a 0.0417% concentration. how many unit doses are needed in order to obtain 10mg of the active ingredient?
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Ответ:
8 unit doses
Step-by-step explanation:
A 0.0417% concentration means that 100 mL of solution contains 0.0417 grams = 41.7 mg of the active ingredient.
Cross-multiplying
100 mL 41.7 mg
x mL 10 mg
100/x = 41.7/10 > x = 1000/41.7 = 23.9808 = 24 mL rounding to the nearest integer.
As a unit dose of Levalbuterol HCL contains 3.0 mL,
we need 24/3 = 8 unit doses to obtain 10 mg of the active substance.
Ответ:
39
Step-by-step explanation: