ZN+ 2HCL= ZNCL2+ H2
65 73 2
X=6.5g y=7.3g 2.24/22.4=0.1MOL 0.1MOL*2g/mol=0.2g粗锌中含锌的质量分数6.5/13*100%=50%和所用盐酸中Hcl的物质的质量浓度7.3/200*100%=3.65%
ZN+ 2HCL= ZNCL2+ H2
65 73 2
X=6.5g y=7.3g 2.24/22.4=0.1MOL 0.1MOL*2g/mol=0.2g粗锌中含锌的质量分数6.5/13*100%=50%和所用盐酸中Hcl的物质的质量浓度7.3/200*100%=3.65%