Hvor mange mol nitrogen i 2,0 x 10-2 mol kinin?

Hvor mange mol nitrogen i 2,0 x 10-2 mol kinin?

2,0 x 10 -2 føflekker C20H24N2O2 (2 mol N /1 mol C20H24N2O2) = 4,0 x 10 -2 mol nitrogen ====================