De or het stofconstante?

The correct Dutch article is:

de stofconstante

Rule Words ending in -te: usually de. See the rule

How to use stofconstante

the stofconstantede stofconstante
this stofconstantedeze stofconstante
that stofconstantedie stofconstante
our stofconstanteonze stofconstante
your stofconstantejouw stofconstante
every stofconstanteelke stofconstante
which stofconstante?welke stofconstante?
a big stofconstante / the big stofconstanteeen grote stofconstante, de grote stofconstante