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CHEM > Exam 1 > Flashcards

Exam 1 Flashcards

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1
Q

What are the units of density?

A

G/ml, g/l basically anything with a slash

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2
Q

What are the units of mass?

A

G, mg, kg, lb

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3
Q

What are the units of temp?

A
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4
Q

What are the units of volume?

A
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5
Q

What are the units of distance?

A
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6
Q

0.000 0043 m in scientific notation

A
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7
Q

How many sigfigs are in 0.005m?

A
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8
Q

How many sigfigs are in 510m?

A
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9
Q

How many sig figs are in 0.510?

A
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10
Q

How many sigfigs are in 0.051m?

A
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11
Q

How many sigfigs are in 5100 m?

A
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12
Q

Round 4.05438 g to a sig figs

A
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13
Q

Round 0.03954 g to three sig figs

A
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14
Q

Round 103.69270 to 4 sig figs

A
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15
Q

Round 109,526 g to 2 sig figs

A
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16
Q

Round 20.0332 to three sig figs

A
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17
Q

7.5g+ 2.26g+ 1.311g+ 2 g

A

13 g

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18
Q

How many kg are in 32.2 lb?

A

14.6 kg

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19
Q

A nugget of gold with amass of 521 g is added to 50.0 mL of water. the water level rises to a volume of 77.0 mL. what is the density of gold?

A

19.3 g/mL

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20
Q

Convert 0.2974 m to cm

A
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21
Q

Write 0.045006 in 4 sig figs?

A
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22
Q

Write 0.00019112 in scientific notation

A
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23
Q

Write 0.0470 in scientific notation

A
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24
Q

Write 6.04x10^-4 in decimal form

A
25
Q

How many sigfigs are in 0.00000000613

A
26
Q

What is a physical change?

A
27
Q

What is a chemical change?

A
28
Q

Dry ice subliming is a

A

Physical change

29
Q

Baking a cake is a

A
30
Q

Ferments grapes to make wine is a

A
31
Q

Digesting a meal is a

A
32
Q

A tomato ripening is a

A
33
Q

The specific hat of a substance is the amount of heat needed to

A

Raise the temp of 1 g of a substance to 1°c

34
Q

What is calories?

A

Change in temp needed to heat 1g of water

35
Q

How many calories are required to raise the tump of a 150g sample of gold from 25°c to 175°c? The specific heat of gold 0.0308 cal/g c

A
36
Q

Titanium dioxide is a chemical used in toothpaste to

A

Makes toothpaste white and opaque

37
Q

Sodium fluorophophate is used to

A

Prevent cosines by strengthening enamel

38
Q

Calcium carbonate is used in toothpaste as an

A

Abrasive to remove plaque

39
Q

Sodium laurel sulfate is used to

A

Loosen plaque

40
Q

Product of -4 x-20 is

A

-80

41
Q

4x+2=10 what’s x?

A

2

42
Q

Cubic centimeter (cm^3 or cc) has the same volume as

A

Milliliters (mL)

43
Q

Grapes are $1.49 per lb. What is the cost of 1.20kg of grapes?

A

$3.93

44
Q

How many kg an in 30.41b?

A
45
Q

A dose of aspirin of 5.0mg per kg of body weight has been prescribed to reduce Th fever an infant weighing 8.5lbs. The number of m g of aspirin that should be administered is

A

19 mg

46
Q

What is the mass of 2.00 L of an intravenous glucose solution with a density of 1.15 g/mL

A

2.30 kg

47
Q

A liquid has a volume of 40.0 ml and a mass of 46.0 g. What is the density of the liquid?

A
48
Q

Of calories needed to voice the temp of 32 g of water from 12°c to 54°c is

A

1300 cal

49
Q

Turner is prescribed Prozac oral solution 10 mg orally daily in the morning and the by specialist. The pharmacy sends up Prozac liquid 20 mg per 5 mL
how much Prozac do u draw up for turner?

A

2.5 mL

50
Q

The physician prescribes phenobarbital elixir 60 mg PO for the patient. The pharmacy dispenses 120ml both of phenobarbital labeled 20m/ 5ml , how much elixir should you administer to this patient?

A

I5 ml

51
Q

How many sig figs are in 9.999900000

A
52
Q

How many sig figs are in 0.00032)

A
53
Q

How many sig figs are in 40000000

A
54
Q

What is a calorimeter?

A
55
Q

What is hypothermia?

A
56
Q

What is hyperthermia?

A
57
Q

What is a homogeneous mixture?

A
58
Q

When 4.7g of metal absorbs 11 J the temp rises by 4.5°c. What is the specific heat of the metal?

A

0.52 J/g °c

CHEM (4 decks)

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