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Chemistry 1210 > Terms > Flashcards

Terms Flashcards

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1
Q

Avogadro’s Number

A

6.022x10^23

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2
Q

How many inches in a centimeter?

A

1 inch = 2.54cm

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3
Q

How many grams in a lb?

A

1lb = 453.6g

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4
Q

Steps in scientific method

A
  1. Observe
  2. Form a question
  3. Form Hypothesis
  4. Conduct Experiment
  5. Formulate Theory
  6. Test Theory
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5
Q

1mL = X cm^3

A

1mL = 1cm^3

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6
Q

Mass unit

A

grams

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7
Q

Length Unit

A

Meter

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8
Q

Temp Unit

A

Kellvin

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9
Q

Amount of substance unit

A

mole

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10
Q

Compound

A

Substance composed of 2 or more elements

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11
Q

Organic Compound

A

Usually contains Carbon, Hydrogen, and Nitrogen

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12
Q

1g = X amu

A

1g = 6.022x10^23

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13
Q

1amu = X grams

A

1amu = 1.66054x10^-24

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14
Q

How to find deviation

A
  1. Work out the Mean (the simple average of the numbers)
  2. Then for each number: subtract the Mean and square the result
  3. Then work out the mean of those squared differences.
  4. Take the square root of that and we are done!
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15
Q

1m = how many feet

A

3.28ft

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16
Q

1inch^3 = Xcm^3

A

16.387cm^3

17
Q

1 gallon = x Liters

A

3.786L

18
Q

1mile = Xm

A

1610m

19
Q

Diameter of an atom

A

(1x10^-10m) to (5x10^-10m)

20
Q

angstrom in meters

A

1x10^-10m

21
Q

6-?
C
12

A

Number of protons and electrons

22
Q

6
C
12-?

A

12-6=6 neutrons

Bottom minus top = neutrons

23
Q

Definition of density

A

Amount of mass in a unit volume of a substance

24
Q

Derived unit

A

Obtained by multiplication or division of one or more of the base units.

25
Q

Pure substance

A

Matter with a distinct property that does not vary from sample to sample. H2O & salt

26
Q

Mixtures

A

Combo of 2 or more substances in which each substance retains its chemical identity

27
Q

Degrees Fahrenheit to degrees Celsius

A

(5/9)x(F-32)

28
Q

Law of constant composition

A

Elemental Composition of a compound is always the same.

29
Q

Intensive properties

A

Do not depend on a amount

30
Q

Precision

A

How closely individual measurements agree with one another.

31
Q

Celsius to Kelvin

A

K= C+273.15

32
Q

Accuracy

A

How closely individual measurements agree with the correct value.

33
Q

Heterogeneous

A

Mixtures that are not uniform

34
Q

Homogeneous

A

Mixture is uniformed throughout

35
Q

Physical properties

A

Can be observed without changing the identity or composition of a substance.

36
Q

Chemical properties

A

The way a substance may change or react to form other substances.

37
Q

Extensive property

A

dependent on a amount

38
Q

C to F

A

(9/5)xC+32

39
Q

Density formula

A

Density = Mass/Volume

Chemistry 1210 (9 decks)

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