Unit Conversions (Lecture 4)

From Farenheit to Celsius

(Farenheit *-32)/1.8

From Celsius to Farenheit

1.8*Celius+32

From Celsius to Kelvin

Celsius +273.15

From Kelvin to Fahrenheit

(1.8*Kelvin)-459.67

1 kilogram is

2.2 pounds

1 inch is

2.54 cm

The new concentration (of the solution) can be calculated using the formula:

Final concentration = [Original conc.] [dilution(s) done]

Dilution factor formula

Total volume/ volume from OG

Conc. of original sample =

(result obtained) (dilution factor)

Dilution Ratio

eg.1/10 dilution of a 1/5 stock

Percent:

as parts per 100 parts

mg/dL

it is a weight/volume expression (mg per 100 mL)

Molarity(M)

# of moles of solute per 1L of solution

Normality(N)

# of equivalents of solute per 1L of solution