October 2018 1 63 Report
1.berapa garam NaOH(Mr=40)harus dimasukan kedalam 200 ml larutan CH₃COOH= 0,05 M agar didapat larutan penyangga dengan Ph =4? (Ka CH₃COOH =1x10 ^-5

2. Larutan NAOH 0,1 M yang volumenya 400 ml ditambahkan ke dalam 200 ml larutan H₂So4 ternyata diperoleh larutan penyangga dengan PH =9 -2 log 2(kb=10^-5) hitungglah kemolaran H2so4

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