Stoichiometry

Question 1

Avogadro constant

Answer 1

1 mole = 6.022 x 10^23

Question 2

Dilution formula

Answer 2

C1V1 = C2V2

Question 3

Ideal Gas Law

Answer 3

PV = nRT, where
P = pressure (kPa or Atm)
V= Volume (Liters)
n = mole
R = gas constant
T = Temperature (Kelvin’s)

Question 4

temp conversion to kelvin

Answer 4

°C + 273 = k

Question 5

Avogadro’s Law

Answer 5

V1/N1 = V2/N2

Question 6

CHARLE’S LAW

Answer 6

V1/T1 = V2/T2

Question 7

GAY LUSSAC’S LAW

Answer 7

P1/T1 = P2/T2

Question 8

BOYLE’S LAW

Answer 8

P1V1 = P2V2

Question 9

COMBINED GAS LAW

Answer 9

P1V1/T1 = P2V2/T2

Question 10

value of R gas const

Answer 10

• 0.0821 (atm)
• 8.31(k pa )
• 62.4 (mm of hg )

Question 11

relative atomic mass of carbon:
* if c12 is 30%
* c13 20%
* c14 50%

Answer 11

0.3(12)+0.2(13)+0.5(14) =
3.6 + 2.6 + 7 =
13.2

Question 12

percentage yield

Answer 12

Percent Yield = (Actual Yield / Theoretical Yield) x 100

actual yield : yield that was obtained in expression

theoritical: yield that is theoritically obtainable
acc to the reaction equation

Question 13

orbitals are filled singly before being doubly occupied

Answer 13

Hunds rule

Question 14

Hunds rule

Answer 14

orbitals are filled singly before being doubly occupied