ijW(xu)УƌW(xu)dȤСMоľl(f)ȼcwe?jn)?sh)P(gun)ϵn}ȡ(sh)(yn)Eȡ5ֻ250mLƿ5ֻƿзքeb25mL50mL75mL100mL125mLˮëƬwסξ̖(ho)12345÷ֽ^(gu)䣨H2O2ķȡȡͨ^(gu)ˮ15̖(ho)ƿеˮȥیǵľlβ15̖(ho)ƿ^쵽ĬF(xin)Ӌ(j)㔵(sh)(j)±
ƿ(bio)̖(ho) | 1 | 2 | 3 | 4 | 5 |
ƿռwe | 25mL | 50mL | 75mL | 100mL | 125mL |
ľlĠr | | (f)ȼ | (f)ȼ |
13 4
2^(gu)ˮ+ ֽⷴ(yng)
3B
452.6
ԇ}1(j)(sh)(yn)F(xin)֪ʹǵľl(f)ȼСwe?jn)?sh)3̖(ho)ƿ4̖(ho)ƿ֮gM(jn)н
2(j)^(gu)ֽˮM(jn)н
3(j)^쵽F(xin)Ӌ(j)㔵(sh)(j)
4(j)՚ĺƿЌ(sh)Hռwe?jn)?sh)M(jn)н
⣺1(sh)(yn)F(xin)֪ʹǵľl(f)ȼСwe?jn)?sh)3̖(ho)ƿ4̖(ho)ƿ֮g
2^(gu)ֽˮ(yng)ֱ_(d)ʽ^(gu)ˮ+⣬ԓ(yng)һN|(zh)(yng)ɃɷN|(zh)ڷֽⷴ(yng)
3(j)ό(sh)(yn)(sh)Կƿwe?jn)?sh)52.6%r(sh)ǵľl(f)ȼ
4ƿ4we?jn)?sh)100%=52.6%|(zh)ȼij̶cĝP(gun)ԽȼԽңǷȼþƾc(din)ȼ^F(xin)ȻȼM(jn)Mļƿ^F(xin)՚ȼl(f){(ln)ɫаl(f){(ln)ɫf(shu)ԽȼԽң
ʴ𰸞飺134
2^(gu)ˮ+ֽⷴ(yng)
3B
452.6ǷȼУþƾc(din)ȼ^F(xin)ȻȼM(jn)Mļƿ^F(xin)՚ȼl(f){(ln)ɫаl(f){(ln)ɫ棬f(shu)ԽȼԽң
c(din)(sh)(yn)̽|(zh)׃ėlӰ|(zh)׃أ
c(din)u(png)}ҪP(gun)֪R(sh)(du)n֪R(sh)M(jn)һ̽}P(gun)IҪջW(xu)ʽĕ(sh)(xi)|(zh)ȼr(sh)Č(sh)(yn)F(xin)ȷ֪R(sh)
ĿлW(xu) (li)Դ }ͣ
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 | ԭӣһ(hu)Ϩ | | (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 |
| ||
| ||
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}ȡ(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H2O2ķȡ⣬ԓ(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)(xi)±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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