Pharmaceutical Calculations Exam
2025–2026 Accurate Real Exam
Questions and Verified Correct
Answers
How many milligrams of a certified red color should be used in preparing 5
L of a 0.1% solution?
a. 0.005 g
b. 0.5 g
c.5 g
d. 0.05 g - answer>>>c.5 g
What is the percentage of alcohol in a mixture of 4000 mL of 60% and
3000 mL of 30% alcohol?
a. 47%
b. 3666%
c. 82.5%
d. 110% - answer>>>a. 47%
A gallon of a certain lotion contains 946 mL of benzyl benzoate.
Calculate the % v/v of benzyl benzoate in the lotion.
a. 20%
b. 25
%
c.18
%
d.28
%
e. 15% - answer>>>b. 25%
How many grams of a dug substance should be dissolved in 1800 mL of
water to make 10% (w/w) solution?
1|Page
,a. 100 g
b. 50 g
c.300 g
d.25 g
e. 200 g - answer>>>e. 200 g
LidocaineHCl syringe contains 100 mg per 5 mL injection. Express this
concentration in % (w/v).
a. 0.2%
b. 20
%
c.10
%
d. 1.0%
e. 2% - answer>>>e. 2%
Expression of concentrations of weak solutions or liquid preparations:
a. ratio strength
b. concentrations per se
c. strength volume
d. concentration gradient
e. all of the given - answer>>>a. ratio strength
If the dose of the drug is 100 mg how many doses are there in 100 mg?
a. 100
b. 1000
c. 10000
d. 100000
e. 1000000 - answer>>>b. 1000
2|Page
,1.5 mg/ 5 mL of echothipateacetonide ointment is also equivalent to:
a. 0.3%
b. 30%
c.0.00
3%
d.0.03
%
e.none - answer>>>d.0.03%
How many of a grams of a drug, tannic acid should be dissolved in 320
mL of glycerine having a specific gravity of 1.25 to make a 20% (w/w)
solution?
a. 8 g
b. 0.8 g
c. 80 g
d. 800 g
e. 0.008 g - answer>>>d. 800 g
If the specific gravity of alcohol is 0.812, what is the weight in kilograms of
10 L?
a. 2.81 kg
b. 8.12 kg
c.2.18 kg
d.1.82 kg
e. 8.21 kg - answer>>>b. 8.12 kg
The drawback on alcohol is $11.50 per proof gallon. If an eligible
claimant used 18 gallons of 95% alcohol, how much drawback will be
allowed?
a. 2941 mL
b. 850
mL
c.11765
mL
d. 85 mL - answer>>>a. 2941 mL
3|Page
, Convert 6:1000 (w/v) to mg/mL:
a. 60 mg/ 10 mL
b. 6 mg/ mL
c. 600 mg/ 100 mL
d. all of the above - answer>>>d.all of the above
How many grams of opium containing 15% (w/w) of morphine and how
many grams of lactose should be used to prepare 150 g of opium
containing 10% of morphine?
a. 50 g
b. 5 g
c. 0.5 g
d. 500 g
e .none - answer>>>a. 50 g
If 50 tablets contain 0.625 g of an active ingredient, how many tablets
can e prepared from 31.25 g of the ingredient?
a. 1000 tablets
b. 2500 tablets
c. 3030 tablets
d. none of the above - answer>>>b. 2500 tablets
How many fluidounces of a 7% solution can be made from 142 grains
of potassium iodide?
a. 4.6
b. 5
c. 4.5
d. 4.4 - answer>>>c. 4.5
4|Page
2025–2026 Accurate Real Exam
Questions and Verified Correct
Answers
How many milligrams of a certified red color should be used in preparing 5
L of a 0.1% solution?
a. 0.005 g
b. 0.5 g
c.5 g
d. 0.05 g - answer>>>c.5 g
What is the percentage of alcohol in a mixture of 4000 mL of 60% and
3000 mL of 30% alcohol?
a. 47%
b. 3666%
c. 82.5%
d. 110% - answer>>>a. 47%
A gallon of a certain lotion contains 946 mL of benzyl benzoate.
Calculate the % v/v of benzyl benzoate in the lotion.
a. 20%
b. 25
%
c.18
%
d.28
%
e. 15% - answer>>>b. 25%
How many grams of a dug substance should be dissolved in 1800 mL of
water to make 10% (w/w) solution?
1|Page
,a. 100 g
b. 50 g
c.300 g
d.25 g
e. 200 g - answer>>>e. 200 g
LidocaineHCl syringe contains 100 mg per 5 mL injection. Express this
concentration in % (w/v).
a. 0.2%
b. 20
%
c.10
%
d. 1.0%
e. 2% - answer>>>e. 2%
Expression of concentrations of weak solutions or liquid preparations:
a. ratio strength
b. concentrations per se
c. strength volume
d. concentration gradient
e. all of the given - answer>>>a. ratio strength
If the dose of the drug is 100 mg how many doses are there in 100 mg?
a. 100
b. 1000
c. 10000
d. 100000
e. 1000000 - answer>>>b. 1000
2|Page
,1.5 mg/ 5 mL of echothipateacetonide ointment is also equivalent to:
a. 0.3%
b. 30%
c.0.00
3%
d.0.03
%
e.none - answer>>>d.0.03%
How many of a grams of a drug, tannic acid should be dissolved in 320
mL of glycerine having a specific gravity of 1.25 to make a 20% (w/w)
solution?
a. 8 g
b. 0.8 g
c. 80 g
d. 800 g
e. 0.008 g - answer>>>d. 800 g
If the specific gravity of alcohol is 0.812, what is the weight in kilograms of
10 L?
a. 2.81 kg
b. 8.12 kg
c.2.18 kg
d.1.82 kg
e. 8.21 kg - answer>>>b. 8.12 kg
The drawback on alcohol is $11.50 per proof gallon. If an eligible
claimant used 18 gallons of 95% alcohol, how much drawback will be
allowed?
a. 2941 mL
b. 850
mL
c.11765
mL
d. 85 mL - answer>>>a. 2941 mL
3|Page
, Convert 6:1000 (w/v) to mg/mL:
a. 60 mg/ 10 mL
b. 6 mg/ mL
c. 600 mg/ 100 mL
d. all of the above - answer>>>d.all of the above
How many grams of opium containing 15% (w/w) of morphine and how
many grams of lactose should be used to prepare 150 g of opium
containing 10% of morphine?
a. 50 g
b. 5 g
c. 0.5 g
d. 500 g
e .none - answer>>>a. 50 g
If 50 tablets contain 0.625 g of an active ingredient, how many tablets
can e prepared from 31.25 g of the ingredient?
a. 1000 tablets
b. 2500 tablets
c. 3030 tablets
d. none of the above - answer>>>b. 2500 tablets
How many fluidounces of a 7% solution can be made from 142 grains
of potassium iodide?
a. 4.6
b. 5
c. 4.5
d. 4.4 - answer>>>c. 4.5
4|Page
