Mole and molecular mass Flashcards
1
Q
mole (1 mol)
A
1 mole of any material contains 6.02 x 10^23 particles
2
Q
6.02 x 10^23
A
Avogrado’s number (NA)
3
Q
molar mass
A
mass of 1 mol of that substance
4
Q
the numerical value of molar mass of a substance =
A
its relative ( atomic, molecular, formula) mass
5
Q
N =
A
n x NA
6
Q
n
A
m/M
7
Q
N
A
number of particles(no unit)
8
Q
n
A
number of moles(mol)
9
Q
m
A
mass in gram(g)
10
Q
M
A
molar mass(gmol^-1)
11
Q
chemical formula
A
includes the number and types of atoms in molecule
12
Q
empirical formula
A
the simplest ration whole number ratio of ions in a formula unit of an ionic compound or atoms of each element in a molecule
13
Q
A