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Chem 110 > Quiz 2 Material (Conversions/Dimensional Analysis) > Flashcards

Quiz 2 Material (Conversions/Dimensional Analysis) Flashcards

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1
Q

Accuracy vs precision

A

Accuracy is closeness to the actual target
Precision is the ability to consistently place near that target

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2
Q

How many pounds are in one kilogram?

A

2.21

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3
Q

Convert 130 lbs to kg

A

59 kg

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4
Q

Convert 63.5 in to ft

A

5.29 ft

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5
Q

How many pounds are in a ton

A

2000

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6
Q

Convert 1275 pounds to tonnes and grams

A

.6375 tonnes
5.783 x 10^5 g

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7
Q

Convert 10.07 quarts into liters

A

9.527 liters

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8
Q

Convert 2.43 micrograms into grams

A

2.43 x 10^-6 grams

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9
Q

Formula for density

A

Mass divided by volume

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10
Q

How do we convert volume (mL) to mass (g)?

A

Multiply mL x g/mL to get g

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11
Q

How do we convert mass (g) to volume (mL)?

A

Multiply g x mL/g to get mL

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12
Q

Find the density of 48.0 g of metal if the level of water in a cylinder rises from 25 to 33 mL after the metal is added

A

The density is 6.0 g/cm^3

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13
Q

If the density of acetic acid is 1.05 g/mL,what is the volume of 5 grams of acetic acid?

A

4.8 mL

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14
Q

If olive oil has a density of 0.92 g/mL, how many liters of olive oil are in 285 g of olive oil?

A

0.31 L

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15
Q

How many liters of gasoline contain 2.2 kg of gasoline (density of gasoline is 0.66 g/mL)

A
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16
Q

A group of students collected 125 empty aluminum cans to take to the recycling center. If 21 cans contain 1.0 lb of aluminum, how many liters of aluminum (D = 2.70 g/cm3) are obtained from the cans?
Hints: 454 g = 1 lb 1cm3 = 1 mL

A
17
Q

Temperature is

A

A measure of the average kinetic energy of particles in a sample

18
Q

Hot particles move ____ than cold particles

A

Faster

19
Q

Conversion for Celsius to Fahrenheit

A

tF =(1.8xtC)+32

20
Q

Conversion for Fahrenheit to Celsius

A

tC = (tF – 32)/1.8

21
Q

Conversion for Celsius to Kelvin

A

tK = tC + 273.15

22
Q

A person with hypothermia has a body temperature of 34.8 °C. What Is that temperature in °F?

A

94.64° F

23
Q

Convert 211°C to Kelvin

A

484.15°K

24
Q

Convert 35.8°K to Celsius

A

-237.35

25
Q

Convert 77.4°K to Fahrenheit

A

-320.35°F

26
Q

A person loses 2.70lb in two weeks. How many grams did they lose?

A

1220 g

27
Q

A city block is 0.161 km long. How many cm is this?

A

16100 cm

28
Q

A bench press bar has a mass of 20.4 kg. How many lb is this?

A

44.9 lb

29
Q

Convert 3.2 ft^2 to square inches.

A

460 square inches

30
Q

Convert 2.30 hours to seconds

A

8280 seconds

31
Q

How many cm in one inch?

A

2.54

32
Q

How many grams are in one pound?

A

453.592g

Chem 110 (9 decks)

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