Respuesta :
53.14 grams of Zn[tex]Cl_{2}[/tex] will be produced from 26.0 g of Zn and 42.0 g of HCl.
Explanation:
Balanced chemical reaction:
Zn + 2 HCl ⇒ Zn[tex]Cl_{2}[/tex] + [tex]H_{2}[/tex]
data given:
mass of Zn = 26 grams
mass of HCl = 42 grams
mass of Zn[tex]Cl_{2}[/tex] = ?
here in the reaction Zn is the limiting reagent so mass of
Zn[tex]Cl_{2}[/tex] formed will be determined by it.
atomic mass of zinc =65.38 grams/mole
number of moles = [tex]\frac{mass}{atomic mass of 1 mole}[/tex]
putting the values in the above equation:
number of moles of zinc = [tex]\frac{26}{65.38}[/tex]
number of moles of zinc = 0.39 moles
From the balanced reaction it is seen that
1 mole of Zn produced 1 mole of Zn[tex]Cl_{2}[/tex]
0.39 moles will produce x moles of Zn[tex]Cl_{2}[/tex]
0.39 moles of Zn[tex]Cl_{2}[/tex] (atomic mass of Zn = 65.38 grams/mole)
mass = atomic mass x number of moles
= 0.39 x 136.28
= 53.14 grams
53.14 grams of Zn[tex]Cl_{2}[/tex] is formed
