CHEM-151 EXAM 1: Measurements, Conversions, and Formulas

SI Unit for length

meter (m)

SI Unit for mass

kilogram (kg)

SI Unit for temperature

kelvin (K)

SI Unit for time

second (s)

SI Unit for amount of a substance

mole (mol)

SI Unit for electric current

ampere (A)

SI Unit for luminous intensity

candela (cd)

giga/G

10⁹

mega/M

10⁶

kilo/k

10³

hecto/h

100/10²

deka/da

10

deci/d

10^-1

centi/c

10^-2

milli/m

10^-3

micro/µ

10^-6

nano/n

10^-9

pico/p

10^-12

What is 1m equal to in in, ft, and yd

1 m= 39.36 in

1 m= 3.28 ft

1 m= 1.09 yd

How many cm are in 1 in

2.54 cm

How many mi are in 1 km

0.62 mi

How many mL are in a fluid oz

29.6 mL

How many lb are in 1 kg

2.20 lb

How many g are in 1 oz

28.35 g

How many g are in 1 lb

454 g

How many qt are in 1 L

1.06 qt

Formula for °C to °F

°F = 1.8(°C) + 32

Formula for °C to K

K = °C + 273.15

Formula for Density

Density= mass ÷ volume

How many cm³ are in 1 mL

1 cm³

Formula for Specific Heat

heat÷ (mass x cal/g °C)

Formula for Heat

q = c x m x ΔT

Energy conversions

• 1 cal = 4.184 J

• 1 Cal = 1000 calories