20mL=0.02L
CaO + 2HCl == CaCl2 + H2O
56g 2mol
0.56g n(HCl)
n(HCl)=0.02mol
c(HCl)=n(HCl)÷V(aq)=0.02mol÷0.02L=1mol/L
答:盐酸物质的量浓度为1mol/L.
20mL=0.02L
CaO + 2HCl == CaCl2 + H2O
56g 2mol
0.56g n(HCl)
n(HCl)=0.02mol
c(HCl)=n(HCl)÷V(aq)=0.02mol÷0.02L=1mol/L
答:盐酸物质的量浓度为1mol/L.