100 ml larutan ch3cooh 0,4 m dicampur dengan 100 ml larutan naoh 0,4 m, jika ka ch3cooh=2*10^-5 maka ph larutan yg terjadi adalah
fatihahalhusna
![mmol \ CH_3COOH=100\times0,4=40\ mmol\\mmol\ NaOH=100\times0,4=40\ mmol\\mmol\ CH_3COOH=mmol\ NaOH\rightarrow Larutan\ terhidrolisis\\\\{[G]}=\dfrac{40}{200}=0,2\ M\\\\{[OH^-]}=\displaystyle \sqrt{\frac{K_w\times[G]}{K_a}}=\sqrt{\frac{10^{-14}\times0,2}{2\times10^{-5}}}=10^{-5}\ M\\\\pOH=5\rightarrow \boxed{\boxed{\bold{pH=9}}}](https://tex.z-dn.net/?f=mmol+%5C+CH_3COOH%3D100%5Ctimes0%2C4%3D40%5C+mmol%5C%5Cmmol%5C+NaOH%3D100%5Ctimes0%2C4%3D40%5C+mmol%5C%5Cmmol%5C+CH_3COOH%3Dmmol%5C+NaOH%5Crightarrow+Larutan%5C+terhidrolisis%5C%5C%5C%5C%7B%5BG%5D%7D%3D%5Cdfrac%7B40%7D%7B200%7D%3D0%2C2%5C+M%5C%5C%5C%5C%7B%5BOH%5E-%5D%7D%3D%5Cdisplaystyle+%5Csqrt%7B%5Cfrac%7BK_w%5Ctimes%5BG%5D%7D%7BK_a%7D%7D%3D%5Csqrt%7B%5Cfrac%7B10%5E%7B-14%7D%5Ctimes0%2C2%7D%7B2%5Ctimes10%5E%7B-5%7D%7D%7D%3D10%5E%7B-5%7D%5C+M%5C%5C%5C%5CpOH%3D5%5Crightarrow+%5Cboxed%7B%5Cboxed%7B%5Cbold%7BpH%3D9%7D%7D%7D "mmol \ CH_3COOH=100\times0,4=40\ mmol\\mmol\ NaOH=100\times0,4=40\ mmol\\mmol\ CH_3COOH=mmol\ NaOH\rightarrow Larutan\ terhidrolisis\\\\{[G]}=\dfrac{40}{200}=0,2\ M\\\\{[OH^-]}=\displaystyle \sqrt{\frac{K_w\times[G]}{K_a}}=\sqrt{\frac{10^{-14}\times0,2}{2\times10^{-5}}}=10^{-5}\ M\\\\pOH=5\rightarrow \boxed{\boxed{\bold{pH=9}}}")
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