Question #6da34

1 Answer
Dec 29, 2017

#=0.12molAlCl_3#

Explanation:

  1. Since data are already in moles, find the the required moles of each substanced considering a complete reaction to find the limiting reactant; i.e.,
    #A. etaAl=0.15mol#
    #=0.15cancel(molAl)xx(6molHCl)/(2cancel(molAl))#
    #=0.45molHCl#

#"This means that:"#
#0.15molAl-=0.45molHCl#

#"Therefore"#

#(etaHCl " available")/(=0.35molHCl)<(etaHCl " required")/(=0.45molHCl)#

#B. etaHCl=0.35mol#
#=0.35cancel(molHCl)xx(2molAl)/(6cancel(molHCl))#
#=0.12molAl#

#"This means that:"#
#0.35molHCl-=0.1167molAl#

#"Therefore"#

#(etaAl " available")/(=0.15molAl)>(etaAl " required")/(=0.12molHCl)#

  1. Thus, the limiting reactant is #HCl#. Now. find the #AlCl_3# formed; i.e.,
    #=0.35cancel(molHCl)xx(2molAlCl_3)/(6cancel(molHCl))#
    #=0.12molAlCl_3#