Chemistry · 2020
JEE Main · 9 January 2020, Shift 1 · Q49
The hardness of a water sample containing 10^-3 M MgSO_4 expressed as CaCO_3 equivalents (in ppm ) is \ \ \ \. (molar mass of MgSO_4 is 120.37 g /…
The hardness of a water sample containing $\displaystyle 10^{-3} \mathrm{M} \mathrm{MgSO}_4$ expressed as $\displaystyle \mathrm{CaCO}_3$ equivalents (in ppm ) is \_\_\_\_.
(molar mass of $\displaystyle \mathrm{MgSO}_4$ is $\displaystyle 120.37 \mathrm{~g} / \mathrm{mol}$ )
Official answer
100
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