1. Stoichiometry

Question 1

characteristics of ideal gases

Answer 1

1. free-moving particles
2. particles have negligible volume
3. no inter-particle forces between molecules

Question 2

the absolute temperature

Answer 2

T in Kelvin

Question 3

How many Pa are in 1 atm?

Answer 3

1 atm= 101325 Pa (sometimes we take it as 100000 or 10^5atm)

Question 4

How many mmHg are there in 1atm?

Answer 4

760

Question 5

The temperature in Kelvin and Celcius relation is:

Answer 5

T=273+ temp

Question 6

The value of R is:

Answer 6

8,31

Question 7

njesia e R :

Answer 7

J/K*mol

Question 8

Ideal gas law

Answer 8

pV=nRT

Question 9

Combined gas law

Answer 9

P1V1/T1= P2V2/T2

Question 10

Boyle’s law

Answer 10

T=cte
P1V1= P2V2

Question 11

Charle’s law

Answer 11

P=cte
V1/T1= V2/T2

Question 12

Gay Lusaac’s law

Answer 12

V=cte

Question 13

Dalton’s law:

Answer 13

1. Ne perzierjet e gazit ideal, gazet perberes sillen ne menyre te pavarur nga njeri-tjetri

shtypja e pergjithshme= shuma e trysnive te pjesshme

Question 14

STP

Answer 14

standard temperature and volume

Question 15

STP conditions:

Answer 15

t= 0 g.celcius and P=1atm

Question 16

Molar volume in STP

Answer 16

22,4

Question 17

RTP

Answer 17

room temperature and volume

Question 18

RTP condition

Answer 18

t=25 g.celcius

Question 19

Molar volume in room temperature

Answer 19

24

Question 20

Avogadro’s number

Answer 20

1 mol= 6,02 * 10^23 particles

Question 21

molality formula

Answer 21

Cm= number of moles/ mass of solvent