CHM151 – Fall 2004
1.
Worksheet
Dimensional Analysis I
Answer Key
parsec
quark
2. 5.98 x 10–14
!
2 drizzles 5 sizzles 3twizzles 3swizzles 22 frizzles
"
"
"
"
1 fizzle
8 drizzles 14 sizzles 7 twizzles 1swizzle
3.
= 2.53 frizzles ##
$ 3 frizzles
s. f .
1 fizzle "
4. 20,000 leagues "
!
!
5. 6.35 mi "
6. 60in "
!
7.
!
!
1.6093km
= 10.219 km ##
$10.2 km
s. f .
mi
2.54 cm
1m
"
= 1.524 m ##
$2 m
s. f .
in
100cm
60 mi 5280 ft 12in
1h
63,360in
"
"
"
=
##
$ 60,000 in min
s. f .
h
mi
ft
60 min
min
8. 225 L "
!
3nautical mi
6080 ft
12in
"
"
= 4.38 "10 9 in ##
$ 4 "10 9 in
s. f .
league
nautical mi
ft
1gal
$1.35
"
= $80.24
3.7854 L
gal
mass sample = 25.52 g " 20.04 g = 6.43g
9.
mass
6.43g
density =
=
= 0.72 g cm 3
3
volume 9.0cm
0.75 g
" 50 mL = 37.5 g ##
$ 38 g
s. f .
mL
10.
mass graduated cylinder + liquid = 37.5( 38) g + 85.25 g = 122.75 g ##
$123g
s. f .
mass liquid = density " volume =
!
!