Atoms and Molecules

Question 1

Mass number

Answer 1

the total number of neutrons and protons in a element

Question 2

Atomic mass definition

Answer 2

1/12 of the mass of the element compared to the mass of carbon-12

Question 3

Concentration moles formula

Answer 3

n=c*v/1000

Question 4

Ideal gas formula

Answer 4

Pv=RnT

P=pressure (Pa)
v=volume 
R=gas constant (J K^-1 mol^-1)(8.314)
n=moles
T=temp (K) (if in C turn into K add 273.15)

Question 5

Gas Volume moles formula

Answer 5

n=Volume in dm^3/24

n=Volume in cm^3/24000

Question 6

Moles formulae

Answer 6

n= no of particles you have/ avogadro’s constance (6.02x10^23)
n=Mass/Mr

Question 7

Moles definition

Answer 7

Is the amount of a substance