JEE Main 20209 Jan, Morning shiftChemistryMediumSome Basic Concepts in Chemistry88× since 2002
The hardness of a water sample containing
10^–3 M MgSO₄ expressed as CaCO₃ equivalents
(in ppm) is ______.
(molar mass of MgSO₄ is 120.37 g/mol)
JEE Main 2020 · 9 Jan, Morning shift · Q15