mole and stoichiometry Flashcards
1
Q
what does mole represent?
A
it represents chemical quantity
2
Q
how many particles does 1 mol of any chemical substance consist of?
A
6.02 x 10^23. This is also known as Avogadro’s constant
3
Q
what is the magnitude of the molar mass equal to?
A
it is equal to the sum of mass number/ relative atomic number of atoms present in the chemical formula
4
Q
what is the volume that 1 mol of any gas occupies?
A
24dm^3 or 24000cm^3
5
Q
what does concentration refer to?
A
it refers to the amount of solute (mass or mol) dissolved per unit volume
6
Q
how to calculate volume of gas?
A
mol x 24dm3/24000cm3
7
Q
how to calculate volume of anything other than gas?
A
mol divided by concentration
