ƿ(bio)̖(ho) | 0 | 1 | 2 | 3 | 4 | 5 |
ƿwe?jn)?sh)s | 21.0% | 28.9% | 36.8% | 44.7% | 52.6% | 60.5% |
ľlĠr | ԭһ(hu)Ϩ | | (f)ȼ | (f)ȼ |
| ||
| ||
ĿлW(xu) (li)Դ }ͣ
ƿ(bio)̖(ho) | 1 | 2 | 3 | 4 | 5 |
ƿwe?jn)?sh) | 28.9% | 36.8% | 44.7% | 52.6% | 60.5% |
ľlĠr | | (f)ȼ | (f)ȼ |
| ||
| ||
鿴𰸺ͽ>>
ĿлW(xu) (li)Դ }ͣ
ƿ(bio)̖(ho) | 1 | 2 | 3 | 4 | 5 |
ƿwe?jn)?sh) | 28.9% | 36.8% | 44.7% | 52.6% | 60.5% |
ľlĠr | | (f)ȼ | (f)ȼ |
(sh)(yn)(ni) | (sh)(yn)F(xin) | (sh)(yn)Y(ji)Փ |
ԽȼԽ |
鿴𰸺ͽ>>
ĿлW(xu) (li)Դ }ͣx
ƿ(bio)̖(ho) | 1 | 2 | 3 | 4 | 5 |
ƿռwe | 25mL | 50mL | 75mL | 100mL | 125mL |
ľlĠr | | (f)ȼ | (f)ȼ |
MnO2 |
MnO2 |
鿴𰸺ͽ>>
ĿлW(xu) (li)Դ }ͣ
ijW(xu)ƌW(xu)dȤСMоǵľl(f)ȼcwe?jn)?sh)P(gun)ϵn}Уȡ(sh)(yn)E
ȡ5ֻ250 mLƿ5ֻƿзքeb25 mL50 mL75 mL100 mL125 mLˮëƬwסξ̖(ho)12345
÷ֽ^(gu)䣨H2O2ķȡȡͨ^(gu)ˮ1~5̖(ho)ƿеˮȥ
یǵľlβ1~5̖(ho)ƿ^쵽ĬF(xin)Ӌ(j)㔵(sh)(j)±
ԇشІ(wn)}
1(sh)(yn)в÷ֽ^(gu)䣨H2O2ķȡԓ(yng)ĻW(xu)ʽ_(ki)_________________________________
2(j)ό(sh)(yn)(sh)f(shu)_ǣ
A. ֻڼвʹǵľl(f)ȼ
B. ƿwe?jn)?sh)52.6%r(sh)ǵľl(f)ȼ
C. ֻҪھͿʹǵľl(f)ȼ
3(sh)(yn)|(zh)ȼij̶cĝP(gun)ԽȼԽՈ(qng)eһ(sh)(yn)(ni)ݺ͌(sh)(yn)F(xin)±У
鿴𰸺ͽ>>
ʡ(lin)W(wng)`ͲϢe(bo)ƽ_(ti) | W(wng)кϢe(bo)^(q) | p_e(bo)^(q) | vʷ̓o(w)xкϢe(bo)^(q) | ֙(qun)e(bo)^(q)
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