MEDIUMMCQ SINGLENEET ChemistryPhysical ChemistryMole _ Equivalent ConceptChemical Equations and Stoichiometry
How many moles of ferric alum (NH ) SO Fe (SO ) .24 H₂O can be made from the sample of Fe containing 0.0056 g of it ?
A.10–4mol
B.0.5 × 10–4mol✓ Correct
C.0.33 × 10–4mol
D.2 × 10–4mol
Explanation
From conditions we have, Moles of Fe=0.0056/56= 4 10mol 2 mol of Fe = 1 mol of alum 4 10mol of Fe =1/2× 4 10mol=0.5× 4 10mol
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