Constants

Question 1

Charge of electron

Answer 1

1.602 x 10^-19 C

Question 2

mass of electron

Answer 2

9.10 x 10^-28 g

Question 3

e- charge-to-mass ratio

Answer 3

1.76 x 10^8 C g-1

Question 4

Angstrom to m

Answer 4

1 A = 1 x 10^-10m

Question 5

1 amu to g

Answer 5

1 amu = 1.66054 x 10^-24 g

Question 6

Avogadro’s Number

Answer 6

6.022 x 10^23 particles/mol

Question 7

Kelvin

Answer 7

C + 273.15 K

Question 8

Celsius

Answer 8

5/9 (F-32)

Question 9

Fahrenheit

Answer 9

9/5 C + 32

Question 10

Universal Constant, R

Answer 10

0.08206 L-atm/mol-K
8.31447 J/mol-K
0.0831447 L-bar/mol-K
82.05746 cm^3-atm/mol-K

Question 11

Boltzmann, K

Answer 11

1.3806 x 10^–23 m2-kg/s2-K

Question 12

Atm equivalents

Answer 12

1 atm = 760 torr
= 101,325 Pa or N/m2

Question 13

Pascal unit

Answer 13

kg/m-s2

Question 14

amu of proton, neutron, and electron

Answer 14

• 1.0073 amu proton
• 1.0087 amu neutron
• 5.486 x 10^–4 amu electron