Chemistry, 18.10.2019 01:30 DragonWarrior203
Determine the ph of the following base solutions. (assume that all solutions are at 25°c and the ion-product constant of water, kw, is 1.01 ✕ 10−14.) (a) 1.39 ✕ 10−2 m naoh webassign will check your answer for the correct number of significant figures. (b) 0.0051 m al(oh)3 webassign will check your answer for the correct number of significant figures.
Answers: 2
![K_w=[H^+][OH^-]](/tpl/images/0330/0905/bc68a.png)
![1.01\times 10^-{14}=[H^+][OH^-]](/tpl/images/0330/0905/ef4b3.png)
![-\log[1.01\times 10^-{14}]=(-\log [H^+])+(-\log [OH^-])](/tpl/images/0330/0905/fdeff.png)
of NaOH.
![[OH^-]=1\times [NaOH]=1\times 1.39\times 10^{-2} M=1.39\times 10^{-2} M](/tpl/images/0330/0905/52ef4.png)
![pOH=-\log[1.39\times 10^{-2} M]=1.86](/tpl/images/0330/0905/dac37.png)
of NaOH.
![[OH^-]=3\times [Al(OH)_3]=3\times 0.0051 M=0.0153 M](/tpl/images/0330/0905/db0a1.png)
![pOH=-\log[0.0153 M]=1.82](/tpl/images/0330/0905/47516.png)
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Determine the ph of the following base solutions. (assume that all solutions are at 25°c and the ion...
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