Chapter 1 Flashcards

(48 cards)

0
Q

Closeness to the true value

A

Accuracy

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1
Q

Refers to the closeness of a set of values

A

Precision

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2
Q

What figures are significant?

A

1-all nonzero numbers
2-confined zeros
3-trailing zeros to the right of a decimal

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3
Q

What figures are NOT significant?

A

1-leading zeros

2-trailing zeros to the left of a decimal

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4
Q

What is precision?

A

A set of numbers that are close to each other and are reproducible

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5
Q

What is accuracy?

A

Closeness to the true value; the average of all values

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6
Q

How do you decipher the amount of sig figs when multiplying and dividing?

A

Least number of sig figs

Ex: 123
x 22
2706= 2.7x10^3 (2sig figs)

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7
Q

How do you decipher the amount of sig figs when adding and subtracting?

A

Least decimal places

Ex. 1.433
1.3
+3.45.
6.183 = 6.2 (2sig figs)

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8
Q

Giga

A

x10^9

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9
Q

Mega

A

x10^6

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10
Q

Kilo

A

x10^3

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11
Q

deci

A

x10^-1

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12
Q

centi

A

x10^-2

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13
Q

milli

A

x10^-3

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14
Q

micro

A

x10^-6

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15
Q

nano

A

x10^-9

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16
Q

pico

A

x10^-12

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17
Q

Femto

A

x10^-15

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18
Q

Angstrom

A

x10^-10

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19
Q

x10^9

20
Q

x10^6

21
Q

x10^3

22
Q

x10^-1

23
Q

x10^-2

24
x10^-3
milli
25
x10^-6
micro
26
x10^-9
nano
27
x10^-12
pico
28
x10^-15
Femto
29
x10^-10
Angstrom
30
What is the base unit for length in SI?
Meters
31
What is the base unit for length in Metric?
Meters
32
What is the base unit for mass in SI?
kg
33
What is the base unit for mass in Metric?
g
34
What is the base unit for temperature in SI?
K
35
What is the base unit for temperature in Metric?
Celsius
36
What is the base unit for volume in SI?
m^3
37
What is the base unit for volume n Metrics?
L
38
What is the formula for the volume of a cylinder?
(pie) r^2 x length/height
39
What is the formula for volume of a cuboid?
Length x width x height
40
How do you go from Celsius to Fahrenheit?
(Cx1.8) + 32= F
41
How do you go from Fahrenheit to Celsius?
(F-32) / 1.8= C
42
How do you go from Celsius to Kelvin?
C+273.15= K | only use the .15 if the C has a decimal
43
What is the formula for density?
D= M/V
44
1mL =?
1mL= 1cm^3
45
What are the steps of figuring out volume of an irregular shape into SI units?
1. Water displacement 2. Change the mL in cm^3 (1mL=1cm^3) 3. Cube the meters 4. Change into scientific notation
46
1in=?
1in= 2.54cm
47
What is the Law of Conservation of Mass?
The total mass remains constant throughout a chemical reaction.