select count(asac1.abssolutionid) 
from abstractcomponent ac1
inner join abssolutionabscomponent asac1 on asac1.abscompid = ac1.id
inner join abssolutionabscomponent asac2 on asac1.abssolutionid = asac2.abssolutionid
inner join abstractcomponent ac2 on ac2.id = asac2.abscompid
where
(
	asac1.weightfraction = .9 and
	(
		ac1.inchistring = 'H2O' or
		((ac1.inchistring is null or ac1.inchistring = '') and ac1.name = 'Water')
	) 
	and
	asac2.weightfraction = .1 and
	(
		ac2.inchistring = 'KCl' or
		((ac2.inchistring is null or ac2.inchistring = '') and ac2.name = 'Potassium Chloride')
	)
)