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21 Cards in this Set

  • Front
  • Back
Which of the following terms defines the amount of mass in a unit volume?

a. density

b. specific mass

c. specific gravity

d. specific volume

e. none of the above
a. density

The formula is M=D times V
Similar to a % formula as well.
Part = whole times %
Which of the following terms defines the amount of heat energy required to raise one gram of any substance one degree on the Celsius scale?

a. calorie

b. heat

c. specific heat

d. joule

e. none of the above
c. specific heat

Don't confuse this with Joules.
Which of the following is a unit factor corresponding to the unit equation:
1 mile = 1.61 kilometers?

a. 1 mi/1 km

b. 1 mi/1.61 km

c. 1.61 mi/1.61 km

d. 1 km/1.61 mi

e. 1 km/1 mi
b. 1 mi/1.61 km
If a silver chain has a mass of 25.0 g, what is the mass in pounds?

a. 0.0551 lb

b. 0.0264 lb

c. 18.1 lb

d. 37.8 lb

e. 11,400 lb
a. 0.0551 lb

1 lb = 454 grams

25g times 1 lb / 454 g
If 500.0 mL of liquid mercury weighs 6.53 kg, what is the mass in pounds?

a. 1.44 lb

b. 2.96 lb

c. 7.19 lb

d. 14.4 lb

e. 2960 lb
d. 14.4 lb

500ml is just extra info.
6.53/1 times 1000g/1kg times
1lbs./454g = 14.38 lbs.=14.4lbs.
If a rectangular stainless steel block measures 5.05 cm by 1.50 cm by 1.25 cm, what is the volume of the stainless steel solid?

a. 0.106 cm3

b. 2.69 cm3

c. 4.21 cm3

d. 6.06 cm3

e. 9.47 cm3
e. 9.47 cm3

Mulitply all three to get cm3 or ml or cc
A piece of tin foil has a volume of 0.645 mm3. If the piece measures 10.0 mm by 12.5 mm, what is the thickness of the foil?

a. 0.000 516 mm

b. 0.005 16 mm

c. 0.0516 mm

d. 80.6 mm

e. 194 mm
b. 0.005 16 mm

.654/10 times 12.5
.654/125 = close to .00516 mm
If an automobile engine has a displacement of 155 in.3, what is the volume in cubic centimeters?

a. 9.45 cm3

b. 61.0 cm3

c. 394 cm3

d. 1000 cm3

e. 2540 cm3
e. 2540 cm3

155 in.3rd times (
1in./2.54cm)3rd =
A 109.35 g sample of brass is added to a 100-mL graduated cylinder with 55.5 mL of water. If the resulting water level is 68.0 mL, what is the volume of the brass?

a. 12.5 mL

b. 32.0 mL

c. 44.5 mL

d. 87.5 mL

e. 123.5 mL
a. 12.5 mL

a. 12.5 mL

V=68-55.5= 12.5ml
109.35g/12.5ml = 8.75g/ml
A rectangular block of aluminum has a mass of 39.589 g and measures 5.10 cm by 2.50 cm by 1.15 cm. Find the density of the aluminum block.

a. 0.370 g/cm3

b. 2.70 g/cm3

c. 3.11 g/cm3

d. 14.7 g/cm3

e. 22.3 g/cm3
b. 2.70 g/cm3

5.10 x 2.50 x 1.15 = volume
Osmium is one of the most dense elements (22.5 g/cm3). What is the mass of 10.0 cm3 of the metal?

a. 0.444 g

b. 2.25 g

c. 22.5 g

d. 225 g

e. 444 g
d. 225 g

M=D times V

22.5g/cm3rd times 10.0cm3rd
A glass cylinder contains four liquid layers: mercury (d = 13.6 g/mL), chloroform (d = 1.49 g/mL), water (d = 1.00 g/mL), ether (d = 0.708 g/mL). If a piece of ice (d = 0.917 g/mL) is dropped into the cylinder, where does it come to rest?

a. on top of the mercury layer

b. on top of the chloroform layer

c. on top of the water layer

d. on top of the ether layer

e. on the bottom of the cylinder
c. on top of the water layer
What are the freezing point and boiling point of water on the Celsius scale?

a. 0°C and 100°C

b. 0°C and 212°C

c. 32°C and 100°C

d. 32°C and 212°C

e. 273°C and 373°C
a. 0°C and 100°C
Aluminum melts at 1220°F. What is the melting point on the Celsius scale?

a. 646°C

b. 660°C

c. 696°C

d. 2138°C

e. 2164°C
b. 660°C

C= 5/9 (1220F - 32)
Liquid hydrogen boils at –252°C. What is the boiling point on the Kelvin scale?

a. –525 K

b. –252 K

c. –21 K

d. 21 K

e. 525 K
d. 21 K

-252c + 273.15 = 21.15 Kelvin
When 100.0 g of gasoline undergoes combustion, 9560 kJ of energy are released. Express the heat released in kilocalories. (Given: 4.184 J = 1 cal)

a. 2.28  103 kcal correct

b. 2.28  106 kcal

c. 2.28  109 kcal

d. 4.00  104 kcal

e. 4.00  107 kcal
a. 2.28  103 kcal

9560 x 1 cal/4.184 j =
How many kilocalories of heat are released when 125 g of water cools from 100.0°C to 19.5°C?

a. 0.644 kcal

b. 1.55 kcal

c. 2.44 kcal

d. 10.1 kcal

e. 12.5 kcal
d. 10.1 kcal

125g x 1 calorie x 81.5 Celcius
convert 1 cal to .001 kiloCalorie.
Thus 125 x .001 x 81.5=
= 10.1 kcal
A 100.0 g sample of aluminum released 1680 calories when cooled from 100.0°C to 20.0¡C. What is the specific heat of the metal?

a. 0.168 cal/(g  °C)

b. 0.210 cal/(g °C)

c. 0.840 cal/(g  °C)

d. 4.76 cal/(g  °C)

e. 21.0 cal/(g  °C)
b. 0.210 cal/(g°C)

1680cal/100g times 80celcius =
How many significant digits are justified by the unit factor 1 lb/454 g?

a. 1

b. 2

c. 3

d. infinite

e. impossible to determine
c. 3
An economy car has an EPA highway mileage rating of 22 km/L. What is the mileage rating in miles per gallon? (Given: 1 mi = 1.61 km, and 1 gal = 3.78 L)

a. 3.6 mi/gal

b. 9.4 mi/gal

c. 35 mi/gal

d. 52 mi/gal

e. 130 mi/gal
d. 52 mi/gal

22km/L x 3.78/1.61 = 52 m/gal
A 73.6 g sample of aluminum is heated to 95.0°C and dropped into 100.0 g of water at 20.0°C. If the resulting temperature of the water is 30.0°C, what is the specific heat of the metal?

a. 0.143 cal/(g  °C)

b. 0.209 cal/(g  °C)

c. 0.418 cal/(g  °C)

d. 0.486 cal/(g  °C)

e. 0.679 cal/(g  °C)
b. 0.209 cal/(g x °C)

First do the water:
100g x (1 calorie) x 10C "temp change" = 1000 calories
73.6g x C x 65C =
-4784 x c
1000cal/4784 =
0.209 cal/(gxC)