Jika kb NH4OH =10^-5 , Larutan garam NH4Cl 0,1 M mempunyai pH.......
a.5
b.6
c.7
d.8
e.9
bantu pakai caranya yaaaaa
a.5
b.6
c.7
d.8
e.9
bantu pakai caranya yaaaaa
fatihahalhusna
![Diketahui:\\K_b=10^{-5}\\M=0,1\M\\Ditanya:\\pH=---?\\================\\Jawab:\\\\\displaystyle {[H^+]}=\sqrt{\frac{K_w.M}{K_b}}\\\\~~~~~~~=\sqrt{\frac{10^{-14}.0,1}{10^{-5}}}\\\\~~~~~~~=10^{-5}\ M\\\\\boxed{\boxed{\bold{pH=5}}}](https://tex.z-dn.net/?f=Diketahui%3A%5C%5CK_b%3D10%5E%7B-5%7D%5C%5CM%3D0%2C1%5CM%5C%5CDitanya%3A%5C%5CpH%3D---%3F%5C%5C%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%5C%5CJawab%3A%5C%5C%5C%5C%5Cdisplaystyle+%7B%5BH%5E%2B%5D%7D%3D%5Csqrt%7B%5Cfrac%7BK_w.M%7D%7BK_b%7D%7D%5C%5C%5C%5C%7E%7E%7E%7E%7E%7E%7E%3D%5Csqrt%7B%5Cfrac%7B10%5E%7B-14%7D.0%2C1%7D%7B10%5E%7B-5%7D%7D%7D%5C%5C%5C%5C%7E%7E%7E%7E%7E%7E%7E%3D10%5E%7B-5%7D%5C+M%5C%5C%5C%5C%5Cboxed%7B%5Cboxed%7B%5Cbold%7BpH%3D5%7D%7D%7D "Diketahui:\\K_b=10^{-5}\\M=0,1\M\\Ditanya:\\pH=---?\\================\\Jawab:\\\\\displaystyle {[H^+]}=\sqrt{\frac{K_w.M}{K_b}}\\\\~~~~~~~=\sqrt{\frac{10^{-14}.0,1}{10^{-5}}}\\\\~~~~~~~=10^{-5}\ M\\\\\boxed{\boxed{\bold{pH=5}}}")
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Akabane69
benarkah pH nya 5 ?? bukannya jika diketahui Kb, berarti yang diketahui adalah kosentrasi OH- . jadi 5 merupakan POH nya, sedangkan untuk pH nya adalah 14 -5 = 9. terimah kasih
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