is water hard or soft if it contains 1.8 moles
It's important to know 1.80 mols/what volume.
Here is a chart that will tell you after you know the volume.
http://en.wikipedia.org/wiki/Hard_water#Hard.2Fsoft_classification
Here is a chart that will tell you after you know the volume.
http://en.wikipedia.org/wiki/Hard_water#Hard.2Fsoft_classification