作业帮将50ml10mol/l的h2so4溶液加水稀释到250ml,用5mol/l的naoh溶液中和,需要碱液多少毫升
来源：学生作业帮 编辑：作业帮 分类：化学作业 时间：2024/05/10 12:26:00
将50ml10mol/l的h2so4溶液加水稀释到250ml,用5mol/l的naoh溶液中和,需要碱液多少毫升
完整题目如下：
将50ML10mol/l的H2SO4溶液加水稀释到250ml取稀释溶液10ml,用5mol/l的naoh溶液中和,需要碱液多少毫升?
n(H2SO4)=cV=10*0.05=0.5mol
c(H2SO4)=n/V=0.5/0.25=2mol/L
n(H2SO4)=cV=2*0.01=0.02mol
H2SO4+2NaOH=Na2SO4+2H2O
1 2
0.02mol n(NaOH)
n(NaOH)=0.04mol
V(NaOH)=n/c=0.04/5=0.008L=8mL
将50ML10mol/l的H2SO4溶液加水稀释到250ml取稀释溶液10ml,用5mol/l的naoh溶液中和,需要碱液多少毫升?
n(H2SO4)=cV=10*0.05=0.5mol
c(H2SO4)=n/V=0.5/0.25=2mol/L
n(H2SO4)=cV=2*0.01=0.02mol
H2SO4+2NaOH=Na2SO4+2H2O
1 2
0.02mol n(NaOH)
n(NaOH)=0.04mol
V(NaOH)=n/c=0.04/5=0.008L=8mL
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