2.78 g FeSO_4 xH_2O in 100 mL solution gives 0.1 M solution. Thus, x = ___________

JEE Main Chemistry question

2.78 g FeSOHO in 100 mL solution gives 0.1 M solution. Thus, x =

Answer: 7

Moles mol, so molar mass g/mol.

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Question ID VK-130728