the answer is A. I (iodine)
no worries
Magnesium Peroxydisulphate with formula of MgS₂O₈.
<h3><u>Explanation:</u></h3>
The question clearly stands on the concept of molarity and atomic weights.
The atomic weight of magnesium = 24.
The atomic weight of sulphur = 32.
The atomic weight of oxygen = 16.
The amount of magnesium present = 0.248 g
The amount of sulphur present = 0.665 g.
The amount of oxygen present = 1.31g.
So, moles of magnesium present = 0.01 moles.
Moles of sulphur present = 0.02 moles.
Moles of oxygen present = 0.08 moles.
So, mole ratio of the compound as magnesium : sulphur : oxygen = 1:2:8.
So the compound is Magnesium Peroxydisulphate with formula of MgS₂O₈.
Answer: 9.656332386078939e-21
Explanation:
The SI base unit for amount of substance is the mole. 1 grams H2O is equal to 0.055508435061792 mole. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between grams H2O and mole. Type in your own numbers in the form to convert the units