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Sigrid O'Kon

Feb 20, 2025

Calculate the ph of a buffer that is 0.020 m hf and 0.040 m naf. the ka for hf is 3.5 × 10-4.

Calculate the ph of a buffer that is 0.020 m hf and 0.040 m naf. the ka for hf is 3.5 × 10-4.
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 pH = pKa + log ([base]/[acid]) = -log (3.5 x 10^-4) + log (0.040/.020) = 3.46 - 0.30 = 3.16... Show More
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The given buffer solution is 0.020 M HF and 0.040 M NaF.Given the of HF is Finding out : = = 3.46We use the Hendersen-Hasselbalch equation to find out the pH of a buffer solution: [Base] =[NaF] = 0.040 M [Acid] = [HF] =0.020 MPlugging in the values to find out pH,pH = 3.46 + log(2) = 3.76Therefore, pH of the buffer is 3.76... Show More
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