DENSITY AND SPECIFIC GRAVITY

Question 1

Mass per unit volume of a substance

Answer 1

Density

Question 2

What is density expressed as

Answer 2

Grams per cubic centimeter

Question 3

What is the density of water?

Answer 3

1g/cc

Question 4

Formula of density

Answer 4

Density = Mass/Volume

Question 5

Is a ratio, expressed decimally, of the weight of a substance to the weight of an equal volume of a subtance

Answer 5

Specific Gravity

Question 6

The weight of a substance relative to the weight of a standard

Answer 6

Relative Value

Question 7

Formula for Specific Gravity

Answer 7

Specific Gravity = Weight of substance/Weight of Equal Volume of Water

Question 8

What substances are lighter than water?

Answer 8

A specific gravity of less than 1

Question 9

What substances are heavier than water?

Answer 9

Specific gravity is greater than 1

Question 10

Concrete number

Answer 10

Density

Question 11

Units of measure varies

Answer 11

Density

Question 12

Maybe expressed as

Answer 12

1g/mL, 1000g/L, 62.5 lb/cu ft

Question 13

Abstract number

Answer 13

Specific Gravity

Question 14

No unit

Answer 14

Specific gravity

Question 15

Glass bottle to determine specific gravity

Answer 15

Pycnometer

Question 16

What is the formula for calculating the weight if the volume and specific gravity is given

Answer 16

Grams = mL x specific gravity

Question 17

What id the formula for calculating the volume if the weight and specific gravity is given

Answer 17

mL = Grams/Specific Gravity

Question 18

Convert the weight of an ingredient or preparation to volume or vice versa

Answer 18

Pharmaceutical Applications of Specific Gravity

Question 19

Calculate the equivalent strength of a preparation on the basis of either weight or volume

Answer 19

Pharmaceutical Applications of Specific Gravity

Question 20

Preparation of total parenteral nutrition (TPN) admixtures

Answer 20

Pharmaceutical Applications of Specific Gravity

Question 21

Specific gravity is an important factor for urinalysis

Answer 21

Clinical Application

Question 22

What are the percentage strengths?

Answer 22

% w/v
% v/v
% w/w

Question 23

Ratio Strength

Answer 23

5% into 1/20 or 1:20
1:20 into 5%

Question 24

How to convert product percentage strength mg/ml?

Answer 24

Multiply the % strength expressed as a whole number by 10

Example: 4% x 10 = 40mg/mL

Question 25

Expresses the number of mg of substance in 100 mL of liquid

Answer 25

Milligrams percent

Question 26

It is used to occasionally to denote the concentration of a drug or natural substance in a biologic fluid, as in the blood.

Answer 26

Milligrams Percent

Question 27

How are strengths pf very dilute solutions are commonly expressed?

Answer 27

Ppm or ppb

Question 28

What are the methods to reduce or enlarge formulas

Answer 28

Ratio and Proportion Dimensional Analysis Factor Method: Simplest Method