Gas Unit

Question 1

Boyle’s law?

Answer 1

P1V1=P2V2

Question 2

Charles Law

Answer 2

V1/T1=V2/T2

Question 3

Gay Lussac

Answer 3

P1T1=P2T2

Question 4

Avogadro

Answer 4

V1/n1=V2/n2

Question 5

Who invented the classical barometer?

Answer 5

Torricelli

Question 6

How can atmospheric pressure be measured?

Answer 6

With a barometer

Question 7

Explain the mercury barometer work?

Answer 7

The height of mercury indicated the pressure. Patm was measured in millimetres of Hg

Question 8

The different atmospheric pressure units?

Answer 8

1 atm
760 mmHg
760 Torr
14.7 psi
101.3 kPa

Question 9

How to measure trapped gas?

Answer 9

Manometer

Question 10

Formula for reading manometer

Answer 10

Pgas = Patm +/- delta height

Question 11

Combined Gas Law

Answer 11

P1V1/T1n1=P2V2/T2n2

Question 12

STP

Answer 12

Ts=273.15K

Ps=1.00 atm

Question 13

Ideal Gas Constant

Answer 13

0.0820

Question 14

Ideal Gas Law

Answer 14

PV=nRT

Question 15

Air’s mass?

Answer 15

1g in 1000 mL

Question 16

How high can the atmosphere hold water?

Answer 16

10.34m

Question 17

What device did Boyle use?

Answer 17

A J-shaped tube (manometer)

Question 18

How does Cartesian diver work?

Answer 18

The pressure shrinks the volume of air in the diver… thus the diver gets heavier, denser, and sinks

Question 19

Avogadro’s Hypothesis: ________

Answer 19

(1811)

At a constant temperature and pressure equal volumes of gas have the same number of particles, regardless of type

Question 20

How did they come up with the mol number?

Answer 20

So that the atomic mass number is the same as the mass, in grams, of 1 mile of atoms of that element

Question 21

Standard set

Answer 21

P: 1.00 atm
V: 22.4 L
T: 273.15K
n: 1 mol

Question 22

STP stands for

Answer 22

Standard Temperature and Pressure

Question 23

SATP stands for

Answer 23

Standard Ambient Temperature and Pressure

Question 24

NTP stands

Answer 24

Normal Temperature and Pressure

Question 25

The law that states that at a constant volume, the pressure of a fixed mass of any gas is directlyproportional to its Kelvin temperature is...

Answer 25

Boyles laws

Question 26

How is 'absolute zero' defined in chemistry, and what is its significance regarding gases?

Answer 26

When there is absolutely no Kinetic energy present. Any gas at this temperature would have zerovolume if it remained a gas

Question 27

Who was the first scientist to use the scientific process to find the relationships between the variables of a gas?

Answer 27

Robert Boyle

Question 28

Boyle's Law states that:

Answer 28

The pressure exerted by a given mass of a gas at constant temperature is inversely proportional to the volume occupied by the gas

Question 29

What is the molar volume of a gas at STP?

Answer 29

22.4 L

Question 30

How many particles are there in one mole?

Answer 30

6.02 x 10^23 particles

Question 31

Why is the mole so important in chemistry?

Answer 31

The mole was created by Amades Avogadro. It is a counting number, like pairs, dozens, or reams. It is a very large counting number to count particles. It's value is 6.02x10^23. The number was chosen so that an element's atomic mass would be the same as its mass in g/mol.