당량점 pH 계산. a) C6H5COOH b) NH3

당량점 pH 계산. a) C6H5COOH b) NH3

a) 0.025 M C6H5COOH 40.0 mL + 0.050 M NaOH 적정

C6H5COOH의 Ka = 6.3×10^(-5)

Calculate the pH at the equivalence point when

a) 40.0 mL of 0.025 M benzoic acid (C6H5COOH, Ka = 6.3×10^(-5)) is titrated with 0.050 M NaOH and b) 40.0 mL of 0.100 M NH3 is titrated with 0.100 M HCl.

b) 0.100 M NH3 40.0 mL + 0.100 M HCl 적정

Consider the titration of 40.0 mL of 0.100 M NH3 with 0.100 M HCl.

Calculate the pH at the equivalence point.

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a) 0.025 M 벤조산 40.0 mL + 0.050 M NaOH 적정

---> 답: pH = 8.21

( 참고 https://ywpop.tistory.com/12633 )

b) 0.100 M NH3 40.0 mL + 0.100 M HCl 적정

---> 답: pH = 5.28

( 참고 https://ywpop.tistory.com/10252 )

[키워드] 당량점 pH 계산 기준, C6H5COOH + NaOH 적정 기준, NH3 + HCl 적정 기준