conversions and equations????

not done babes

1 teaspoon = _____ mL

5

1 teaspoon = _____ tablespoons

3

1 fluid oz = _____ mL

30

1 cup = _____ oz

8

1 pint = ______ oz

16

1 pint = _____ cups

2

1 quart = _____ pints

2

1 gallon = _____ quarts

4

1 kg = _____ lb

2.2

1 oz = _____ g

28.4

1 lb = ____ oz

16

1 lb = _____ g

454

1 grain = _____ mg

65

1 inch = _____ cm

2.54

converting ppm to % strength

move decimal left 4 places

aka divide by 10,000 (divide by 1,000,000 but multiply by 100 for %)

converting % strength to ppm

move decimal right 4 places

aka multiply by 10,000 (multiply by 1,000,000 but divide by 100 for %)

specific gravity =

grams/mL

osmolarity: mOsm/L =

g/MW x # particles x 1,000

mole =

g/MW

mmol =

mg/MW

isotonicity: E value (sodium chloride equivalent)

(58.5)(i)

(MW)(1.8)

isotonicity steps

1. multiply 0.9 g/100 mL by desired volume

2. multiply E value by drug qty (g or mg)

3. subtract step 2 from step 1

mEq =

mg x valence

MW

or

mmol x valence

number of particles (for osmolarity)

how many particles the compound dissociates into

ex: KCl —> 2

non-ionic things do not dissociate: mannitol, dextrose

valence (for mEq)

charge of dissociated compound (look at total positive or total negative charge since they’ll be equal)

ex: KCl —> K⁺¹ and Cl^-1 —> valence = 1

ex: CaCl₂ —> Ca⁺² and Cl^-1 and Cl^-1 —> valence = 2