Answer: 1) 1.6 moles of HCl
2) 7.0 moles of HCl
3) 2.4 moles of hydrogen
4) 0.96 moles of HCl
Explanation:
The balanced chemical equation is:
[tex]Zn+2HCl\rightarrow ZnCl_2+H_2[/tex]
According to stoichiometry :
1 mole of [tex]Zn[/tex] require = 2 moles of [tex]HCl[/tex]
0.8 moles of [tex]Zn[/tex] will require=[tex]\frac{2}{1}\times 0.8=1.6moles[/tex] of [tex]HCl[/tex]
3.5 moles of [tex]Zn[/tex] will require=[tex]\frac{2}{1}\times 3.5=7.0moles[/tex] of [tex]HCl[/tex]
According to stoichiometry :
2 moles of [tex]HCl[/tex] produce = 1 mole of [tex]H_2[/tex]
4.8 moles of [tex]HCl[/tex] will require=[tex]\frac{1}{2}\times 4.8=2.4moles[/tex] of [tex]H_2[/tex]
According to stoichiometry :
1 mole of [tex]ZnCl_2[/tex] are produced by = 2 moles of [tex]HCl[/tex]
0.48 moles of [tex]ZnCl_2[/tex] are produced by =[tex]\frac{2}{1}\times 0.48=0.96moles[/tex] of [tex]HCl[/tex]