Question
Question: > Which of the following expressions is correct (n = no. of moles of the gas, NA = Avogadro constant...
Which of the following expressions is correct (n = no. of moles of the gas, NA = Avogadro constant, m = mass of 1 molecule of the gas, N = no. of molecules of the gas)?
A
n = m NA
B
m = NA
C
N = Nna
D
m = mn/NA
Answer
N = Nna
Explanation
Solution
(3)
mole = number of molecules / NA
Hence : n = N/NA