Question

As shown in the following reaction, 50.0 grams of Magnesium (Mg) and 75.0 grams of (HCl) are reacted:

Mg + 2 HCl -----------> MgCl2 + H2

What is the limiting reactant?

Answer 1

MM Mg = 24 g/mol

MM HCl = 36.5 g/mol

mol Mg = 50 : 24 = 2.083

mol HCl = 75 : 36.5 = 2.055

moles of reaction: divide the moles of each reactant by its corresponding coefficient in the balanced equation.

Mg : HCl = 2.083/1 : 2.055/2 = 2.083 : 1.028

HCl is the limiting reactant because it gives the fewest moles of reaction.

Answer 2

mg

Step-by-step explanation:

there are 2.05 moles mg and 2.05 moles hcl