1.ҩĿ(ȫֲ)
2.ҩ()ͨ˨ļǿڷ1/22
3.ʵѡ
ֲ˨ӦѡۻҺҩҩﲻյĻʣ
ȫ˨ˮҩѡԻʣ֬֬ѡˮԻʣҩ죬տ졣
4.ûָۣҩͬıֵΪҩûۡ㹫ʽΪ
f = W/zG-(M-W){
ʽУMҩ˨ƽ;Wÿҩ˨ƽҩ;(M-W)ҩ˨лʵ;G˨ƽ˨;fûۡ
û۵IJⶨȡհ˨ƵƽGȡҩƳ˨Ƶúҩ˨ƽMÿҩ˨ƽҩWʽɵûf
ûۿɷļֺҩ˨ҪĻʵx
x = (G-W/f) n
nʾƱ˨
Ʊ0.2g˨10ö˨ģһΪ2gû1.6Դ˴пɿɶ֬(x)Ϊ
x =(G-W/f)n =(2 C 0.2/1.6)×10 = 18.75 g
Ƽ
ػܣ