Answer to Question #208073 in General Chemistry for Talia Thomas

Question

A sample of magnesium is reacted with 4.0 g of sulfuric acid.

 

How many moles of magnesium would react completely?

Answer 1

Mg(s) + H2SO4 (aq)..... MgSO 4(aq) +H2 (g)

If 4.0g of sulfuric acid react = 4/98= 0.0408moles

The mole ratio is 1:1

Therefore 0.0408 moles of magnesium reacted