Chapter 3 And 10

Question 0

Accuracy vs. precision

Answer 0

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

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

Question 1

Convert and form scientific notations.

Answer 1

Coefficient (1-10)

Followed by 10 raised to a power

Question 2

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

Answer 2

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

Question 3

Use the rules for calculating sig figs

Answer 3

Pacific (left)

Atlantic (right) no decimal

Question 4

Identify common SI units

Answer 4

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

Question 5

Convert between Celsius and kelvin

Answer 5

K to c = c+237

C to k = k-273

Question 6

Calculate density

Answer 6

Mass

Volume

Question 7

Complete simple metric conversions

Answer 7

Notes

Question 8

Memorize mole

Answer 8

6.02X10^23

Question 9

Convert numbers of moles to numbers of particles

Answer 9

Take number of moles X 6.02X10^23

Question 10

Find molar mass of an elephant

Answer 10

They’ll

Question 11

Find molar mass of a compound

Answer 11

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

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

Question 12

Covert mass to mole

Answer 12

See notes

Question 13

% error

Answer 13

Experimental -accepted. X100%

Accepted

Question 14

Decimal sig fig

Answer 14

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

Go to the end

Question 15

Non decimal sig fig

Answer 15

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

Question 16

Density of water

Answer 16

4 C is 1g/mL

Question 17

SEE NOtES

Answer 17

SEE NOTES