ƿ(bio)̖ | 1 | 2 | 3 | 4 | 5 |
ƿwe?jn)?sh) | 28.9% | 36.8% | 44.7% | 52.6% | 60.5% |
ľlĠr | | (f)ȼ | (f)ȼ |
| ||
| ||
ĿлW(xu) Դ }ͣ
ƿ(bio)̖ | 0 | 1 | 2 | 3 | 4 | 5 |
ƿwe?jn)?sh)s | 21.0% | 28.9% | 36.8% | 44.7% | 52.6% | 60.5% |
ľlĠr | ԭһϨ | | (f)ȼ | (f)ȼ |
鿴𰸺ͽ>>
ĿлW(xu) Դ }ͣ
ƿ(bio)̖ | 1 | 2 | 3 | 4 | 5 |
ƿwe?jn)?sh) | 28.9% | 36.8% | 44.7% | 52.6% | 60.5% |
ľlĠr | | (f)ȼ | (f)ȼ |
(ni) | F(xin) | Y(ji)Փ |
ԽȼԽ |
鿴𰸺ͽ>>
ĿлW(xu) Դ }ͣx
ƿ(bio)̖ | 1 | 2 | 3 | 4 | 5 |
ƿռwe | 25mL | 50mL | 75mL | 100mL | 125mL |
ľlĠr | | (f)ȼ | (f)ȼ |
MnO2 |
MnO2 |
鿴𰸺ͽ>>
ĿлW(xu) Դ }ͣ
ijW(xu)УƌW(xu)dȤСMоǵľl(f)ȼcwe?jn)?sh)P(gun)ϵn}ȡE
ȡ5ֻ250 mLƿ5ֻƿзքeb25 mL50 mL75 mL100 mL125 mLˮëƬwסξ̖12345
÷ֽ^䣨H2O2ķȡȡͨ^ˮ1~5̖ƿеˮȥ
یǵľlβ1~5̖ƿ^쵽ĬF(xin)Ӌ㔵(sh)(j)±
ԇشІ}
1в÷ֽ^䣨H2O2ķȡ⣬ԓ(yng)ĻW(xu)ʽ__________________________________
2(j)όf_ǣ
A. ֻڼвʹǵľl(f)ȼ
B. ƿwe?jn)?sh)52.6%rǵľl(f)ȼ
C. ֻҪھͿʹǵľl(f)ȼ
3|(zh)ȼij̶cĝP(gun)ԽȼԽҡՈeһ(ni)ݺ͌F(xin)±У
鿴𰸺ͽ>>
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