Manganese metal can be prepared by the thermite process:
4Al(s)
+
3MnO2(s)
→
3Mn(l)
+
2Al2O3(s)
If 175 g of Al and 472 g of MnO2 are mixed, how many moles of Mn could be produced from the reaction?
Relative Atomic Mass Data: Ca = 40; Mn = 55; I = 127; Li = 7; Ag = 108; Al = 27; Na = 23; H = 1; K = 39; Br = 80; N =14; O =16; Cl = 35
