sebanyak 4,1 gram CH3COONa dilarutkan dalam air hingga volumenya 200ml. Ph larutan yang terjadi adalah... (Ar C = 12, Ar H=1, Ar O = 16, Ar Na = 23, Ka = 10-5)
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juans8807
Pertanyaan
sebanyak 4,1 gram CH3COONa dilarutkan dalam air hingga volumenya 200ml. Ph larutan yang terjadi adalah... (Ar C = 12, Ar H=1, Ar O = 16, Ar Na = 23, Ka = 10-5)
1 Jawaban
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1. Jawaban sonyalindaa
[OH-] = akar [(10^-14/10^-5) × (4,1 × 1000 : 82 : 200)]
[OH-] = akar [(10^-9 × 2×10^-1)]
[OH-] = akar (2×10^-10)
[OH-] = 1.4 × 10^-5
pOH = 5 - log 1.4
pH = 9 + log 1.4
semoga membantu :))