Chapter 3 And 10 Flashcards

(18 cards)

0
Q

Accuracy vs. precision

A

Accuracy- how close a measurement comes to the true vale.

Precision- how close a series of measurements are to each other

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1
Q

Convert and form scientific notations.

A

Coefficient (1-10)

Followed by 10 raised to a power

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2
Q

Determine the correct # of sig. Figs. In a measurement

A

All know digits and the last one that is estimated.

Rules
Decimal present (Pacific) start on left side

Decimal absent (Atlantic) start on the right side

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3
Q

Use the rules for calculating sig figs

A

Pacific (left)

Atlantic (right) no decimal

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4
Q

Identify common SI units

A

Mili- 1000
Kilo- 1000 (more)
Centi- 100

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5
Q

Convert between Celsius and kelvin

A

K to c = c+237

C to k = k-273

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6
Q

Calculate density

A

Mass

Volume

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7
Q

Complete simple metric conversions

A

Notes

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8
Q

Memorize mole

A

6.02X10^23

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9
Q

Convert numbers of moles to numbers of particles

A

Take number of moles X 6.02X10^23

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10
Q

Find molar mass of an elephant

A

They’ll

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11
Q

Find molar mass of a compound

A

The mass of a mole of a substance found on the periodic table.

Always under element name. (Round to 4 sig figs)

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12
Q

Covert mass to mole

A

See notes

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13
Q

% error

A

Experimental -accepted. X100%

Accepted

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14
Q

Decimal sig fig

A
  1. Start on left, start counting at non-zero number

Go to the end

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15
Q

Non decimal sig fig

A

Start on right, non zero number, count until the end

16
Q

Density of water

17
Q

SEE NOtES