Chem 1

Question 1

Pressure is the measure of

Answer 1

Force exerted on a unit area of surface

Question 2

SI unit for pressure

Answer 2

Newtons per square meter

Question 3

Newtons per square meter aka

Answer 3

Pascals

Question 4

Pascals aka

Answer 4

Pa

Question 5

More commonly used unit for newtons per square meter (2)

Answer 5

Pascals

Atmospheres

Question 6

Atmospheres aka

Answer 6

Atm

Question 7

kPa stands for

Answer 7

kiloPascal

Question 8

1,000 Pa =

Answer 8

1kPa

Question 9

1 atm = _ Pa

Answer 9

101,325

Question 10

Standard atmospheric pressure is

Answer 10

Actual pressure at sea level

Question 11

Standard atmospheric pressure defined as

Answer 11

101.3 kPa

Question 12

All _ digits are significant (significant figures)

Answer 12

Non-zero (452 mL has three significant figures)

Question 13

Zero values that are _ are significant (significant figures)

Answer 13

Sandwiched between nonzero digits

Question 14

When sandwiched, _ make zero still count (significant figures)

Answer 14

Decimals (8.04 has three sig figures)

Question 15

0.35 has _ sig figures

Answer 15

2

Question 16

0.09800 has _ sig figures

Answer 16

4

Question 17

0.098 has _ sig figs

Answer 17

2

Question 18

If a decimal is present, read from _ to _ ()

Answer 18

Left

Right

(0.09800 has 4 sig figs)

Question 19

If a decimal is present, read from _ to _ ()

Answer 19

Left

Right

6.00 g has three significant figures

Question 20

If decimal point is not present, read _ to _

Answer 20

Right

Left

(580 has two sig figs)

Question 21

6060 g has _ sig figs

Answer 21

Three

Question 22

500 mg has _ sig fig

Answer 22

1

Question 23

What significant figures signify

Answer 23

Estimation (population 360,000,000 the zeros are insignificant because not exactly population of 360 million)