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Answer : 2 109.9446 Explanation : Answer: B) 109.9446 Explanation: The term gram formula mass is synonymous with molecular mass. So, to get this, we must add molar mass of all the elements in this compound. Given compound is Lithium Sulphate - Li2SO4Elemental calculation ::Li  -  Lithium   -   6.941    -     2   -   13.88200 %S  -  Sulfur     -    32.065   -    1   -   32.065 %O  -  Oxygen   -   15.9994  -    4   -   63.9976 %Now, total = 12.6264 29.1647 58.2090 = 109.9446  Hence, the gram formula mass of Li2SO4 = 109.9446.

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