If 10.0 g of MgSO4⋅7H2O is thoroughly heated, the mass of anhydrous magnesium sulfate will remain is 4.88 grams.
Mass is the unit that quantify the matter in a physical body.
The molar mass of the MgSO4⋅7H2O is 246.47 grams.
When magnesium sulfate is heated, the molar mass of magnesium sulfate become 120.36 g/mol
Now, both molar masses are divide and multiplied by 10
[tex]\dfrac{120.36 g/mol}{246.47} \times 10 = 4.88 g.[/tex]
Thus, the mass of anhydrous magnesium sulfate will remain is 4.88 grams.
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