Question

The oxide of an element possess the molecular formula m2o3 if the equivalent mass of the metal is 9 tge molecular mass of the oxide will be

Answer 1

This is fine for creating a DataArray -- but when I try to convert to a dataset (so I can write to netCDF), I get an error about 'ValueError: Coordinate objects must be 1-dimensional'

2) The second approach I've tried is taking my dataarray, casting it to a dataframe, setting the index to ['lat','lng', 'time'] and then going back to a dataset with xr.Dataset.from_dataframe(). I've tried this -- but it takes 20+ min before I kill the process.

Answer 2

Answer:

Equivalent weight= 9

Let the atomic weight of the metal be X

Valency factor = 3

So X/3=9

=> X = 9×3=27

So Molecular weight = 2×27+16×3=54+48=102.